Fix Layout/LeadingCommentSpace offenses

```
rubocop --only Layout/LeadingCommentSpace -a
```

51 files changed, 218 insertions, 224 deletions

diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index d03f2431..552d2f0c 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -56,12 +56,6 @@ Layout/HeredocIndentation:
     - 'lib/axlsx/drawing/vml_drawing.rb'
     - 'lib/axlsx/drawing/vml_shape.rb'
 
-# Offense count: 218
-# This cop supports safe autocorrection (--autocorrect).
-# Configuration parameters: AllowDoxygenCommentStyle, AllowGemfileRubyComment.
-Layout/LeadingCommentSpace:
-  Enabled: false
-
 # Offense count: 1
 Lint/AmbiguousAssignment:
   Exclude:
diff --git a/lib/axlsx.rb b/lib/axlsx.rb
index a12bf08a..2ee8a1d8 100644
--- a/lib/axlsx.rb
+++ b/lib/axlsx.rb
@@ -21,11 +21,11 @@ require 'axlsx/rels/relationships.rb'
 require 'axlsx/drawing/drawing.rb'
 require 'axlsx/workbook/workbook.rb'
 require 'axlsx/package.rb'
-#required gems
+# required gems
 require 'nokogiri'
 require 'zip'
 
-#core dependencies
+# core dependencies
 require 'bigdecimal'
 require 'set'
 require 'time'
@@ -75,7 +75,7 @@ module Axlsx
     cells.sort_by(&:pos)
   end
 
-  #global reference html entity encoding
+  # global reference html entity encoding
   # @return [HtmlEntities]
   def self.coder
     @@coder ||= ::HTMLEntities.new
diff --git a/lib/axlsx/drawing/bar_3D_chart.rb b/lib/axlsx/drawing/bar_3D_chart.rb
index 6ec95d8d..89544be0 100644
--- a/lib/axlsx/drawing/bar_3D_chart.rb
+++ b/lib/axlsx/drawing/bar_3D_chart.rb
@@ -39,7 +39,7 @@ module Axlsx
     end
     alias :gapWidth :gap_width
 
-    #grouping for a column, line, or area chart.
+    # grouping for a column, line, or area chart.
     # must be one of  [:percentStacked, :clustered, :standard, :stacked]
     # @return [Symbol]
     def grouping
@@ -87,7 +87,7 @@ module Axlsx
     end
     alias :barDir= :bar_dir=
 
-    #grouping for a column, line, or area chart.
+    # grouping for a column, line, or area chart.
     # must be one of  [:percentStacked, :clustered, :standard, :stacked]
     def grouping=(v)
       RestrictionValidator.validate "Bar3DChart.grouping", [:percentStacked, :clustered, :standard, :stacked], v
diff --git a/lib/axlsx/drawing/bar_chart.rb b/lib/axlsx/drawing/bar_chart.rb
index f77eb7c1..1ed38332 100644
--- a/lib/axlsx/drawing/bar_chart.rb
+++ b/lib/axlsx/drawing/bar_chart.rb
@@ -34,7 +34,7 @@ module Axlsx
     end
     alias :gapWidth :gap_width
 
-    #grouping for a column, line, or area chart.
+    # grouping for a column, line, or area chart.
     # must be one of  [:percentStacked, :clustered, :standard, :stacked]
     # @return [Symbol]
     def grouping
@@ -79,7 +79,7 @@ module Axlsx
     end
     alias :barDir= :bar_dir=
 
-    #grouping for a column, line, or area chart.
+    # grouping for a column, line, or area chart.
     # must be one of  [:percentStacked, :clustered, :standard, :stacked]
     def grouping=(v)
       RestrictionValidator.validate "BarChart.grouping", [:percentStacked, :clustered, :standard, :stacked], v
diff --git a/lib/axlsx/drawing/cat_axis.rb b/lib/axlsx/drawing/cat_axis.rb
index ded05ee8..75290da0 100644
--- a/lib/axlsx/drawing/cat_axis.rb
+++ b/lib/axlsx/drawing/cat_axis.rb
@@ -1,5 +1,5 @@
 module Axlsx
-  #A CatAxis object defines a chart category axis
+  # A CatAxis object defines a chart category axis
   class CatAxis < Axis
     # Creates a new CatAxis object
     # @option options [Integer] tick_lbl_skip
diff --git a/lib/axlsx/drawing/chart.rb b/lib/axlsx/drawing/chart.rb
index e64163d9..e9f4441f 100644
--- a/lib/axlsx/drawing/chart.rb
+++ b/lib/axlsx/drawing/chart.rb
@@ -49,7 +49,7 @@ module Axlsx
     # @return [Series]
     attr_reader :series_type
 
-    #TODO data labels!
+    # TODO data labels!
     def d_lbls
       @d_lbls ||= DLbls.new(self.class)
     end
diff --git a/lib/axlsx/drawing/d_lbls.rb b/lib/axlsx/drawing/d_lbls.rb
index 3e51d021..358378c5 100644
--- a/lib/axlsx/drawing/d_lbls.rb
+++ b/lib/axlsx/drawing/d_lbls.rb
@@ -2,7 +2,7 @@ module Axlsx
   # There are more elements in the dLbls spec that allow for
   # customizations and formatting. For now, I am just implementing the
   # basics.
-  #The DLbls class manages serialization of data labels
+  # The DLbls class manages serialization of data labels
   # showLeaderLines and leaderLines are not currently implemented
   class DLbls
     include Axlsx::Accessors
diff --git a/lib/axlsx/drawing/hyperlink.rb b/lib/axlsx/drawing/hyperlink.rb
index 979fdd6a..4d3b343d 100644
--- a/lib/axlsx/drawing/hyperlink.rb
+++ b/lib/axlsx/drawing/hyperlink.rb
@@ -6,7 +6,7 @@ module Axlsx
     include Axlsx::SerializedAttributes
     include Axlsx::OptionsParser
 
-    #Creates a hyperlink object
+    # Creates a hyperlink object
     # parent must be a Pic for now, although I expect that other object support this tag and its cNvPr parent
     # @param [Pic] parent
     # @option options [String] tooltip message shown when hyperlinked object is hovered over with mouse.
@@ -38,7 +38,7 @@ module Axlsx
     alias :invalidUrl :invalid_url
     alias :invalidUrl= :invalid_url=
 
-    #An action to take when the link is clicked. The specification says "This can be used to specify a slide to be navigated to or a script of code to be run." but in most cases you will not need to do anything with this. MS does reserve a few interesting strings. @see http://msdn.microsoft.com/en-us/library/ff532419%28v=office.12%29.aspx
+    # An action to take when the link is clicked. The specification says "This can be used to specify a slide to be navigated to or a script of code to be run." but in most cases you will not need to do anything with this. MS does reserve a few interesting strings. @see http://msdn.microsoft.com/en-us/library/ff532419%28v=office.12%29.aspx
     # @return [String]
     attr_accessor :action
 
diff --git a/lib/axlsx/drawing/num_data.rb b/lib/axlsx/drawing/num_data.rb
index 140cfb9f..7239ac5f 100644
--- a/lib/axlsx/drawing/num_data.rb
+++ b/lib/axlsx/drawing/num_data.rb
@@ -1,5 +1,5 @@
 module Axlsx
-  #This class specifies data for a particular data point. It is used for both numCache and numLit object
+  # This class specifies data for a particular data point. It is used for both numCache and numLit object
   class NumData
     include Axlsx::OptionsParser
 
diff --git a/lib/axlsx/drawing/num_val.rb b/lib/axlsx/drawing/num_val.rb
index c03a0fa1..f4b2c399 100644
--- a/lib/axlsx/drawing/num_val.rb
+++ b/lib/axlsx/drawing/num_val.rb
@@ -1,5 +1,5 @@
 module Axlsx
-  #This class specifies data for a particular data point.
+  # This class specifies data for a particular data point.
   class NumVal < StrVal
     # A string representing the format code to apply.
     # For more information see see the SpreadsheetML numFmt element's (§18.8.30) formatCode attribute.
diff --git a/lib/axlsx/drawing/pic.rb b/lib/axlsx/drawing/pic.rb
index 64e5a877..fb4d01fe 100644
--- a/lib/axlsx/drawing/pic.rb
+++ b/lib/axlsx/drawing/pic.rb
@@ -194,7 +194,7 @@ module Axlsx
       swap_anchor(new_anchor)
     end
 
-    #changes the anchor type to a two cell anchor
+    # changes the anchor type to a two cell anchor
     def use_two_cell_anchor
       return if @anchor.is_a?(TwoCellAnchor)
 
diff --git a/lib/axlsx/drawing/ser_axis.rb b/lib/axlsx/drawing/ser_axis.rb
index b5844454..f49c1301 100644
--- a/lib/axlsx/drawing/ser_axis.rb
+++ b/lib/axlsx/drawing/ser_axis.rb
@@ -1,5 +1,5 @@
 module Axlsx
-  #A SerAxis object defines a series axis
+  # A SerAxis object defines a series axis
   class SerAxis < Axis
     # The number of tick lables to skip between labels
     # @return [Integer]
diff --git a/lib/axlsx/drawing/str_data.rb b/lib/axlsx/drawing/str_data.rb
index 843c90a7..5ea8a892 100644
--- a/lib/axlsx/drawing/str_data.rb
+++ b/lib/axlsx/drawing/str_data.rb
@@ -1,5 +1,5 @@
 module Axlsx
-  #This specifies the last string data used for a chart. (e.g. strLit and strCache)
+  # This specifies the last string data used for a chart. (e.g. strLit and strCache)
   # This class is extended for NumData to include the formatCode attribute required for numLit and numCache
   class StrData
     include Axlsx::OptionsParser
diff --git a/lib/axlsx/drawing/str_val.rb b/lib/axlsx/drawing/str_val.rb
index 4a85d256..e5c851ee 100644
--- a/lib/axlsx/drawing/str_val.rb
+++ b/lib/axlsx/drawing/str_val.rb
@@ -1,5 +1,5 @@
 module Axlsx
-  #This class specifies data for a particular data point.
+  # This class specifies data for a particular data point.
   class StrVal
     include Axlsx::OptionsParser
 
diff --git a/lib/axlsx/drawing/title.rb b/lib/axlsx/drawing/title.rb
index e1b0d7f8..92294a06 100644
--- a/lib/axlsx/drawing/title.rb
+++ b/lib/axlsx/drawing/title.rb
@@ -60,9 +60,9 @@ module Axlsx
     end
 
     # Not implemented at this time.
-    #def layout=(v) DataTypeValidator.validate 'Title.layout', Layout, v; @layout = v; end
-    #def overlay=(v) Axlsx::validate_boolean v; @overlay=v; end
-    #def spPr=(v) DataTypeValidator.validate 'Title.spPr', SpPr, v; @spPr = v; end
+    # def layout=(v) DataTypeValidator.validate 'Title.layout', Layout, v; @layout = v; end
+    # def overlay=(v) Axlsx::validate_boolean v; @overlay=v; end
+    # def spPr=(v) DataTypeValidator.validate 'Title.spPr', SpPr, v; @spPr = v; end
 
     # Serializes the object
     # @param [String] str
diff --git a/lib/axlsx/package.rb b/lib/axlsx/package.rb
index c3805a5c..02ab184c 100644
--- a/lib/axlsx/package.rb
+++ b/lib/axlsx/package.rb
@@ -231,8 +231,8 @@ module Axlsx
       workbook.pivot_tables.each do |pivot_table|
         cache_definition = pivot_table.cache_definition
         parts << { :entry => "xl/#{pivot_table.rels_pn}", :doc => pivot_table.relationships, :schema => RELS_XSD }
-        parts << { :entry => "xl/#{pivot_table.pn}", :doc => pivot_table } #, :schema => SML_XSD}
-        parts << { :entry => "xl/#{cache_definition.pn}", :doc => cache_definition } #, :schema => SML_XSD}
+        parts << { :entry => "xl/#{pivot_table.pn}", :doc => pivot_table } # , :schema => SML_XSD}
+        parts << { :entry => "xl/#{cache_definition.pn}", :doc => cache_definition } # , :schema => SML_XSD}
       end
 
       workbook.comments.each do |comment|
diff --git a/lib/axlsx/stylesheet/border_pr.rb b/lib/axlsx/stylesheet/border_pr.rb
index 8300f4bc..3f1054f2 100644
--- a/lib/axlsx/stylesheet/border_pr.rb
+++ b/lib/axlsx/stylesheet/border_pr.rb
@@ -45,9 +45,9 @@ module Axlsx
     # @see Axlsx::Border
     def initialize(options = {})
       parse_options(options)
-      #options.each do |o|
+      # options.each do |o|
       #  self.send("#{o[0]}=", o[1]) if self.respond_to? "#{o[0]}="
-      #end
+      # end
     end
 
     # @see name
diff --git a/lib/axlsx/stylesheet/color.rb b/lib/axlsx/stylesheet/color.rb
index 4f358a78..d6d204bf 100644
--- a/lib/axlsx/stylesheet/color.rb
+++ b/lib/axlsx/stylesheet/color.rb
@@ -37,7 +37,7 @@ module Axlsx
 
     # no support for theme just yet
     # @return [Integer]
-    #attr_reader :theme
+    # attr_reader :theme
 
     # The tint value.
     # @note valid values are between -1.0 and 1.0
diff --git a/lib/axlsx/stylesheet/dxf.rb b/lib/axlsx/stylesheet/dxf.rb
index a3f15581..516894df 100644
--- a/lib/axlsx/stylesheet/dxf.rb
+++ b/lib/axlsx/stylesheet/dxf.rb
@@ -7,7 +7,7 @@ module Axlsx
     # The order in which the child elements is put in the XML seems to
     # be important for Excel
     CHILD_ELEMENTS = [:font, :numFmt, :fill, :alignment, :border, :protection]
-    #does not support extList (ExtensionList)
+    # does not support extList (ExtensionList)
 
     # The cell alignment for this style
     # @return [CellAlignment]
diff --git a/lib/axlsx/stylesheet/styles.rb b/lib/axlsx/stylesheet/styles.rb
index 2a210776..ca2c7a8c 100644
--- a/lib/axlsx/stylesheet/styles.rb
+++ b/lib/axlsx/stylesheet/styles.rb
@@ -17,7 +17,7 @@ module Axlsx
   require 'axlsx/stylesheet/xf.rb'
   require 'axlsx/stylesheet/cell_protection.rb'
 
-  #The Styles class manages worksheet styles
+  # The Styles class manages worksheet styles
   # In addition to creating the require style objects for a valid xlsx package, this class provides the key mechanism for adding styles to your workbook, and safely applying them to the cells of your worksheet.
   # All portions of the stylesheet are implemented here exception colors, which specify legacy and modified pallete colors, and exLst, whic is used as a future feature data storage area.
   # @see  Office Open XML Part 1 18.8.11 for gory details on how this stuff gets put together
@@ -468,10 +468,10 @@ module Axlsx
     def parse_num_fmt_options(options = {})
       return if (options.keys & [:format_code, :num_fmt]).empty?
 
-      #When the user provides format_code - we always need to create a new numFmt object
-      #When the type is :dxf we always need to create a new numFmt object
+      # When the user provides format_code - we always need to create a new numFmt object
+      # When the type is :dxf we always need to create a new numFmt object
       if options[:format_code] || options[:type] == :dxf
-        #If this is a standard xf we pull from numFmts the highest current and increment for num_fmt
+        # If this is a standard xf we pull from numFmts the highest current and increment for num_fmt
         options[:num_fmt] ||= (@numFmts.map { |num_fmt| num_fmt.numFmtId }.max + 1) if options[:type] != :dxf
         numFmt = NumFmt.new(:numFmtId => options[:num_fmt] || 0, :formatCode => options[:format_code].to_s)
         options[:type] == :dxf ? numFmt : (numFmts << numFmt; numFmt.numFmtId)
diff --git a/lib/axlsx/stylesheet/xf.rb b/lib/axlsx/stylesheet/xf.rb
index e7a84a46..e58608f7 100644
--- a/lib/axlsx/stylesheet/xf.rb
+++ b/lib/axlsx/stylesheet/xf.rb
@@ -2,7 +2,7 @@ module Axlsx
   # The Xf class defines a formatting record for use in Styles. The recommended way to manage styles for your workbook is with Styles#add_style
   # @see Styles#add_style
   class Xf
-    #does not support extList (ExtensionList)
+    # does not support extList (ExtensionList)
 
     include Axlsx::SerializedAttributes
     include Axlsx::OptionsParser
diff --git a/lib/axlsx/util/constants.rb b/lib/axlsx/util/constants.rb
index 7a49a0eb..55e2b58f 100644
--- a/lib/axlsx/util/constants.rb
+++ b/lib/axlsx/util/constants.rb
@@ -95,7 +95,7 @@ module Axlsx
   # comment relation for nil target
   COMMENT_R_NULL = "http://purl.oclc.org/ooxml/officeDocument/relationships/comments".freeze
 
-  #vml drawing relation namespace
+  # vml drawing relation namespace
   VML_DRAWING_R = 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/vmlDrawing'
 
   # VML Drawing content type
@@ -158,7 +158,7 @@ module Axlsx
   # png content type
   PNG_CT = "image/png".freeze
 
-  #drawing content type
+  # drawing content type
   DRAWING_CT = "application/vnd.openxmlformats-officedocument.drawing+xml".freeze
 
   # xml content type extensions
diff --git a/lib/axlsx/workbook/defined_name.rb b/lib/axlsx/workbook/defined_name.rb
index 2632e8ef..d3b6e1ef 100644
--- a/lib/axlsx/workbook/defined_name.rb
+++ b/lib/axlsx/workbook/defined_name.rb
@@ -2,9 +2,9 @@
 #    <definedName name="_xlnm.Print_Titles" localSheetId="0">Sheet1!$1:$1</definedName>
 #  </definedNames>
 
-#<xsd:complexType name="CT_DefinedName">
+# <xsd:complexType name="CT_DefinedName">
 # <xsd:simpleContent>
-# <xsd:extension base="ST_Formula">
+#  <xsd:extension base="ST_Formula">
 # <xsd:attribute name="name" type="s:ST_Xstring" use="required"/>
 # <xsd:attribute name="comment" type="s:ST_Xstring" use="optional"/>
 # <xsd:attribute name="customMenu" type="s:ST_Xstring" use="optional"/>
diff --git a/lib/axlsx/workbook/worksheet/auto_filter/auto_filter.rb b/lib/axlsx/workbook/worksheet/auto_filter/auto_filter.rb
index 9e753759..bf3426b6 100644
--- a/lib/axlsx/workbook/worksheet/auto_filter/auto_filter.rb
+++ b/lib/axlsx/workbook/worksheet/auto_filter/auto_filter.rb
@@ -2,7 +2,7 @@ require 'axlsx/workbook/worksheet/auto_filter/filter_column.rb'
 require 'axlsx/workbook/worksheet/auto_filter/filters.rb'
 
 module Axlsx
-  #This class represents an auto filter range in a worksheet
+  # This class represents an auto filter range in a worksheet
   class AutoFilter
     # creates a new Autofilter object
     # @param [Worksheet] worksheet
diff --git a/lib/axlsx/workbook/worksheet/auto_filter/filter_column.rb b/lib/axlsx/workbook/worksheet/auto_filter/filter_column.rb
index 1fa2ff78..32a9df26 100644
--- a/lib/axlsx/workbook/worksheet/auto_filter/filter_column.rb
+++ b/lib/axlsx/workbook/worksheet/auto_filter/filter_column.rb
@@ -16,7 +16,7 @@ module Axlsx
     # @option [Boolean] show_button @see show_button
     def initialize(col_id, filter_type, options = {})
       RestrictionValidator.validate 'FilterColumn.filter', FILTERS, filter_type
-      #Axlsx::validate_unsigned_int(col_id)
+      # Axlsx::validate_unsigned_int(col_id)
       self.col_id = col_id
       parse_options options
       @filter = Axlsx.const_get(Axlsx.camel(filter_type)).new(options)
@@ -26,7 +26,7 @@ module Axlsx
     serializable_attributes :col_id, :hidden_button, :show_button
 
     # Allowed filters
-    FILTERS = [:filters] #, :top10, :custom_filters, :dynamic_filters, :color_filters, :icon_filters]
+    FILTERS = [:filters] # , :top10, :custom_filters, :dynamic_filters, :color_filters, :icon_filters]
 
     # Zero-based index indicating the AutoFilter column to which this filter information applies.
     # @return [Integer]
diff --git a/lib/axlsx/workbook/worksheet/auto_filter/filters.rb b/lib/axlsx/workbook/worksheet/auto_filter/filters.rb
index 554df012..83da2da2 100644
--- a/lib/axlsx/workbook/worksheet/auto_filter/filters.rb
+++ b/lib/axlsx/workbook/worksheet/auto_filter/filters.rb
@@ -113,7 +113,7 @@ module Axlsx
         @val = value
       end
 
-      #Filter value used in the criteria.
+      # Filter value used in the criteria.
       attr_accessor :val
 
       # Serializes the filter value object
diff --git a/lib/axlsx/workbook/worksheet/cell.rb b/lib/axlsx/workbook/worksheet/cell.rb
index cc668208..364de1e9 100644
--- a/lib/axlsx/workbook/worksheet/cell.rb
+++ b/lib/axlsx/workbook/worksheet/cell.rb
@@ -150,7 +150,7 @@ module Axlsx
 
     # @see value
     def value=(v)
-      #TODO: consider doing value based type determination first?
+      # TODO: consider doing value based type determination first?
       @value = cast_value(v)
     end
 
@@ -537,7 +537,7 @@ module Axlsx
       when :boolean
         v ? 1 : 0
       when :iso_8601
-        #consumer is responsible for ensuring the iso_8601 format when specifying this type
+        # consumer is responsible for ensuring the iso_8601 format when specifying this type
         v
       else
         v.to_s
diff --git a/lib/axlsx/workbook/worksheet/cfvos.rb b/lib/axlsx/workbook/worksheet/cfvos.rb
index 44db4dfd..c5fa80f3 100644
--- a/lib/axlsx/workbook/worksheet/cfvos.rb
+++ b/lib/axlsx/workbook/worksheet/cfvos.rb
@@ -1,6 +1,6 @@
 module Axlsx
-  #A collection of Cfvo objects that initializes with the required
-  #first two items
+  # A collection of Cfvo objects that initializes with the required
+  # first two items
   class Cfvos < SimpleTypedList
     def initialize
       super(Cfvo)
diff --git a/lib/axlsx/workbook/worksheet/col.rb b/lib/axlsx/workbook/worksheet/col.rb
index da3a9364..37c38365 100644
--- a/lib/axlsx/workbook/worksheet/col.rb
+++ b/lib/axlsx/workbook/worksheet/col.rb
@@ -111,7 +111,7 @@ module Axlsx
       # is to only set this if a calculated value is greated than the
       # current @width value.
       # TODO!!!
-      #Axlsx.validate_unsigned_numeric(v) unless v == nil
+      # Axlsx.validate_unsigned_numeric(v) unless v == nil
       @custom_width = @best_fit = v != nil
       @width = v.nil? ? v : [v, MAX_WIDTH].min
     end
diff --git a/lib/axlsx/workbook/worksheet/page_setup.rb b/lib/axlsx/workbook/worksheet/page_setup.rb
index 6b07466e..c10e28ce 100644
--- a/lib/axlsx/workbook/worksheet/page_setup.rb
+++ b/lib/axlsx/workbook/worksheet/page_setup.rb
@@ -64,120 +64,120 @@ module Axlsx
     attr_reader :scale
 
     # The paper size to use in printing
-    #1 = Letter paper (8.5 in. by 11 in.)
-    #2 = Letter small paper (8.5 in. by 11 in.)
-    #3 = Tabloid paper (11 in. by 17 in.)
-    #4 = Ledger paper (17 in. by 11 in.)
-    #5 = Legal paper (8.5 in. by 14 in.)
-    #6 = Statement paper (5.5 in. by 8.5 in.)
-    #7 = Executive paper (7.25 in. by 10.5 in.)
-    #8 = A3 paper (297 mm by 420 mm)
-    #9 = A4 paper (210 mm by 297 mm)
-    #10 = A4 small paper (210 mm by 297 mm)
-    #11 = A5 paper (148 mm by 210 mm)
-    #12 = B4 paper (250 mm by 353 mm)
-    #13 = B5 paper (176 mm by 250 mm)
-    #14 = Folio paper (8.5 in. by 13 in.)
-    #15 = Quarto paper (215 mm by 275 mm)
-    #16 = Standard paper (10 in. by 14 in.)
-    #17 = Standard paper (11 in. by 17 in.)
-    #18 = Note paper (8.5 in. by 11 in.)
-    #19 = #9 envelope (3.875 in. by 8.875 in.)
-    #20 = #10 envelope (4.125 in. by 9.5 in.)
-    #21 = #11 envelope (4.5 in. by 10.375 in.)
-    #22 = #12 envelope (4.75 in. by 11 in.)
-    #23 = #14 envelope (5 in. by 11.5 in.) 24 = C paper (17 in. by 22 in.)
-    #25 = D paper (22 in. by 34 in.)
-    #26 = E paper (34 in. by 44 in.)
-    #27 = DL envelope (110 mm by 220 mm)
-    #28 = C5 envelope (162 mm by 229 mm)
-    #29 = C3 envelope (324 mm by 458 mm)
-    #30 = C4 envelope (229 mm by 324 mm)
-    #31 = C6 envelope (114 mm by 162 mm)
-    #32 = C65 envelope (114 mm by 229 mm)
-    #33 = B4 envelope (250 mm by 353 mm)
-    #34 = B5 envelope (176 mm by 250 mm)
-    #35 = B6 envelope (176 mm by 125 mm)
-    #36 = Italy envelope (110 mm by 230 mm)
-    #37 = Monarch envelope (3.875 in. by 7.5 in.). 38 = 6 3/4 envelope (3.625 in. by 6.5 in.)
-    #39 = US standard fanfold (14.875 in. by 11 in.)
-    #40 = German standard fanfold (8.5 in. by 12 in.)
-    #41 = German legal fanfold (8.5 in. by 13 in.)
-    #42 = ISO B4 (250 mm by 353 mm)
-    #43 = Japanese double postcard (200 mm by 148 mm)
-    #44 = Standard paper (9 in. by 11 in.)
-    #45 = Standard paper (10 in. by 11 in.)
-    #46 = Standard paper (15 in. by 11 in.)
-    #47 = Invite envelope (220 mm by 220 mm)
-    #50 = Letter extra paper (9.275 in. by 12 in.)
-    #51 = Legal extra paper (9.275 in. by 15 in.)
-    #52 = Tabloid extra paper (11.69 in. by 18 in.)
-    #53 = A4 extra paper (236 mm by 322 mm)
-    #54 = Letter transverse paper (8.275 in. by 11 in.)
-    #55 = A4 transverse paper (210 mm by 297 mm)
-    #56 = Letter extra transverse paper (9.275 in. by 12 in.)
-    #57 = SuperA/SuperA/A4 paper (227 mm by 356 mm)
-    #58 = SuperB/SuperB/A3 paper (305 mm by 487 mm)
-    #59 = Letter plus paper (8.5 in. by 12.69 in.)
-    #60 = A4 plus paper (210 mm by 330 mm)
-    #61 = A5 transverse paper (148 mm by 210 mm)
-    #62 = JIS B5 transverse paper (182 mm by 257 mm)
-    #63 = A3 extra paper (322 mm by 445 mm)
-    #64 = A5 extra paper (174 mm by 235 mm)
-    #65 = ISO B5 extra paper (201 mm by 276 mm)
-    #66 = A2 paper (420 mm by 594 mm)
-    #67 = A3 transverse paper (297 mm by 420 mm)
-    #68 = A3 extra transverse paper (322 mm by 445 mm)
-    #69 = Japanese Double Postcard (200 mm x 148 mm)
-    #70 = A6 (105 mm x 148 mm
-    #71 = Japanese Envelope Kaku #2
-    #72 = Japanese Envelope Kaku #3
-    #73 = Japanese Envelope Chou #3
-    #74 = Japanese Envelope Chou #4
-    #75 = Letter Rotated (11in x 8 1/2 11 in)
-    #76 = A3 Rotated (420 mm x 297 mm)
-    #77 = A4 Rotated (297 mm x 210 mm)
-    #78 = A5 Rotated (210 mm x 148 mm)
-    #79 = B4 (JIS) Rotated (364 mm x 257 mm)
-    #80 = B5 (JIS) Rotated (257 mm x 182 mm)
-    #81 = Japanese Postcard Rotated (148 mm x 100 mm)
-    #82 = Double Japanese Postcard Rotated (148 mm x 200 mm)
-    #83 = A6 Rotated (148 mm x 105 mm)
-    #84 = Japanese Envelope Kaku #2 Rotated
-    #85 = Japanese Envelope Kaku #3 Rotated
-    #86 = Japanese Envelope Chou #3 Rotated
-    #87 = Japanese Envelope Chou #4 Rotated
-    #88 = B6 (JIS) (128 mm x 182 mm)
-    #89 = B6 (JIS) Rotated (182 mm x 128 mm)
-    #90 = (12 in x 11 in)
-    #91 = Japanese Envelope You #4
-    #92 = Japanese Envelope You #4 Rotated
-    #93 = PRC 16K (146 mm x 215 mm)
-    #94 = PRC 32K (97 mm x 151 mm)
-    #95 = PRC 32K(Big) (97 mm x 151 mm)
-    #96 = PRC Envelope #1 (102 mm x 165 mm)
-    #97 = PRC Envelope #2 (102 mm x 176 mm)
-    #98 = PRC Envelope #3 (125 mm x 176 mm)
-    #99 = PRC Envelope #4 (110 mm x 208 mm)
-    #100 = PRC Envelope #5 (110 mm x 220 mm)
-    #101 = PRC Envelope #6 (120 mm x 230 mm)
-    #102 = PRC Envelope #7 (160 mm x 230 mm)
-    #103 = PRC Envelope #8 (120 mm x 309 mm)
-    #104 = PRC Envelope #9 (229 mm x 324 mm)
-    #105 = PRC Envelope #10 (324 mm x 458 mm)
-    #106 = PRC 16K Rotated
-    #107 = PRC 32K Rotated
-    #108 = PRC 32K(Big) Rotated
-    #109 = PRC Envelope #1 Rotated (165 mm x 102 mm)
-    #110 = PRC Envelope #2 Rotated (176 mm x 102 mm)
-    #111 = PRC Envelope #3 Rotated (176 mm x 125 mm)
-    #112 = PRC Envelope #4 Rotated (208 mm x 110 mm)
-    #113 = PRC Envelope #5 Rotated (220 mm x 110 mm)
-    #114 = PRC Envelope #6 Rotated (230 mm x 120 mm)
-    #115 = PRC Envelope #7 Rotated (230 mm x 160 mm)
-    #116 = PRC Envelope #8 Rotated (309 mm x 120 mm)
-    #117 = PRC Envelope #9 Rotated (324 mm x 229 mm)
-    #118 = PRC Envelope #10 Rotated (458 mm x 324 mm)
+    # 1 = Letter paper (8.5 in. by 11 in.)
+    # 2 = Letter small paper (8.5 in. by 11 in.)
+    # 3 = Tabloid paper (11 in. by 17 in.)
+    # 4 = Ledger paper (17 in. by 11 in.)
+    # 5 = Legal paper (8.5 in. by 14 in.)
+    # 6 = Statement paper (5.5 in. by 8.5 in.)
+    # 7 = Executive paper (7.25 in. by 10.5 in.)
+    # 8 = A3 paper (297 mm by 420 mm)
+    # 9 = A4 paper (210 mm by 297 mm)
+    # 10 = A4 small paper (210 mm by 297 mm)
+    # 11 = A5 paper (148 mm by 210 mm)
+    # 12 = B4 paper (250 mm by 353 mm)
+    # 13 = B5 paper (176 mm by 250 mm)
+    # 14 = Folio paper (8.5 in. by 13 in.)
+    # 15 = Quarto paper (215 mm by 275 mm)
+    # 16 = Standard paper (10 in. by 14 in.)
+    # 17 = Standard paper (11 in. by 17 in.)
+    # 18 = Note paper (8.5 in. by 11 in.)
+    # 19 = #9 envelope (3.875 in. by 8.875 in.)
+    # 20 = #10 envelope (4.125 in. by 9.5 in.)
+    # 21 = #11 envelope (4.5 in. by 10.375 in.)
+    # 22 = #12 envelope (4.75 in. by 11 in.)
+    # 23 = #14 envelope (5 in. by 11.5 in.) 24 = C paper (17 in. by 22 in.)
+    # 25 = D paper (22 in. by 34 in.)
+    # 26 = E paper (34 in. by 44 in.)
+    # 27 = DL envelope (110 mm by 220 mm)
+    # 28 = C5 envelope (162 mm by 229 mm)
+    # 29 = C3 envelope (324 mm by 458 mm)
+    # 30 = C4 envelope (229 mm by 324 mm)
+    # 31 = C6 envelope (114 mm by 162 mm)
+    # 32 = C65 envelope (114 mm by 229 mm)
+    # 33 = B4 envelope (250 mm by 353 mm)
+    # 34 = B5 envelope (176 mm by 250 mm)
+    # 35 = B6 envelope (176 mm by 125 mm)
+    # 36 = Italy envelope (110 mm by 230 mm)
+    # 37 = Monarch envelope (3.875 in. by 7.5 in.). 38 = 6 3/4 envelope (3.625 in. by 6.5 in.)
+    # 39 = US standard fanfold (14.875 in. by 11 in.)
+    # 40 = German standard fanfold (8.5 in. by 12 in.)
+    # 41 = German legal fanfold (8.5 in. by 13 in.)
+    # 42 = ISO B4 (250 mm by 353 mm)
+    # 43 = Japanese double postcard (200 mm by 148 mm)
+    # 44 = Standard paper (9 in. by 11 in.)
+    # 45 = Standard paper (10 in. by 11 in.)
+    # 46 = Standard paper (15 in. by 11 in.)
+    # 47 = Invite envelope (220 mm by 220 mm)
+    # 50 = Letter extra paper (9.275 in. by 12 in.)
+    # 51 = Legal extra paper (9.275 in. by 15 in.)
+    # 52 = Tabloid extra paper (11.69 in. by 18 in.)
+    # 53 = A4 extra paper (236 mm by 322 mm)
+    # 54 = Letter transverse paper (8.275 in. by 11 in.)
+    # 55 = A4 transverse paper (210 mm by 297 mm)
+    # 56 = Letter extra transverse paper (9.275 in. by 12 in.)
+    # 57 = SuperA/SuperA/A4 paper (227 mm by 356 mm)
+    # 58 = SuperB/SuperB/A3 paper (305 mm by 487 mm)
+    # 59 = Letter plus paper (8.5 in. by 12.69 in.)
+    # 60 = A4 plus paper (210 mm by 330 mm)
+    # 61 = A5 transverse paper (148 mm by 210 mm)
+    # 62 = JIS B5 transverse paper (182 mm by 257 mm)
+    # 63 = A3 extra paper (322 mm by 445 mm)
+    # 64 = A5 extra paper (174 mm by 235 mm)
+    # 65 = ISO B5 extra paper (201 mm by 276 mm)
+    # 66 = A2 paper (420 mm by 594 mm)
+    # 67 = A3 transverse paper (297 mm by 420 mm)
+    # 68 = A3 extra transverse paper (322 mm by 445 mm)
+    # 69 = Japanese Double Postcard (200 mm x 148 mm)
+    # 70 = A6 (105 mm x 148 mm
+    # 71 = Japanese Envelope Kaku #2
+    # 72 = Japanese Envelope Kaku #3
+    # 73 = Japanese Envelope Chou #3
+    # 74 = Japanese Envelope Chou #4
+    # 75 = Letter Rotated (11in x 8 1/2 11 in)
+    # 76 = A3 Rotated (420 mm x 297 mm)
+    # 77 = A4 Rotated (297 mm x 210 mm)
+    # 78 = A5 Rotated (210 mm x 148 mm)
+    # 79 = B4 (JIS) Rotated (364 mm x 257 mm)
+    # 80 = B5 (JIS) Rotated (257 mm x 182 mm)
+    # 81 = Japanese Postcard Rotated (148 mm x 100 mm)
+    # 82 = Double Japanese Postcard Rotated (148 mm x 200 mm)
+    # 83 = A6 Rotated (148 mm x 105 mm)
+    # 84 = Japanese Envelope Kaku #2 Rotated
+    # 85 = Japanese Envelope Kaku #3 Rotated
+    # 86 = Japanese Envelope Chou #3 Rotated
+    # 87 = Japanese Envelope Chou #4 Rotated
+    # 88 = B6 (JIS) (128 mm x 182 mm)
+    # 89 = B6 (JIS) Rotated (182 mm x 128 mm)
+    # 90 = (12 in x 11 in)
+    # 91 = Japanese Envelope You #4
+    # 92 = Japanese Envelope You #4 Rotated
+    # 93 = PRC 16K (146 mm x 215 mm)
+    # 94 = PRC 32K (97 mm x 151 mm)
+    # 95 = PRC 32K(Big) (97 mm x 151 mm)
+    # 96 = PRC Envelope #1 (102 mm x 165 mm)
+    # 97 = PRC Envelope #2 (102 mm x 176 mm)
+    # 98 = PRC Envelope #3 (125 mm x 176 mm)
+    # 99 = PRC Envelope #4 (110 mm x 208 mm)
+    # 100 = PRC Envelope #5 (110 mm x 220 mm)
+    # 101 = PRC Envelope #6 (120 mm x 230 mm)
+    # 102 = PRC Envelope #7 (160 mm x 230 mm)
+    # 103 = PRC Envelope #8 (120 mm x 309 mm)
+    # 104 = PRC Envelope #9 (229 mm x 324 mm)
+    # 105 = PRC Envelope #10 (324 mm x 458 mm)
+    # 106 = PRC 16K Rotated
+    # 107 = PRC 32K Rotated
+    # 108 = PRC 32K(Big) Rotated
+    # 109 = PRC Envelope #1 Rotated (165 mm x 102 mm)
+    # 110 = PRC Envelope #2 Rotated (176 mm x 102 mm)
+    # 111 = PRC Envelope #3 Rotated (176 mm x 125 mm)
+    # 112 = PRC Envelope #4 Rotated (208 mm x 110 mm)
+    # 113 = PRC Envelope #5 Rotated (220 mm x 110 mm)
+    # 114 = PRC Envelope #6 Rotated (230 mm x 120 mm)
+    # 115 = PRC Envelope #7 Rotated (230 mm x 160 mm)
+    # 116 = PRC Envelope #8 Rotated (309 mm x 120 mm)
+    # 117 = PRC Envelope #9 Rotated (324 mm x 229 mm)
+    # 118 = PRC Envelope #10 Rotated (458 mm x 324 mm)
     # @return [Integer]
     attr_reader :paper_size
 
diff --git a/lib/axlsx/workbook/worksheet/pane.rb b/lib/axlsx/workbook/worksheet/pane.rb
index f9323d3e..e752ab22 100644
--- a/lib/axlsx/workbook/worksheet/pane.rb
+++ b/lib/axlsx/workbook/worksheet/pane.rb
@@ -13,7 +13,7 @@ module Axlsx
     # @option options [Integer] x_split Horizontal Split Position
     # @option options [Integer] y_split Vertical Split Position
     def initialize(options = {})
-      #defaults
+      # defaults
       @active_pane = @state = @top_left_cell = nil
       @x_split = @y_split = 0
       parse_options options
diff --git a/lib/axlsx/workbook/worksheet/sheet_protection.rb b/lib/axlsx/workbook/worksheet/sheet_protection.rb
index b36f8875..7433d5bb 100644
--- a/lib/axlsx/workbook/worksheet/sheet_protection.rb
+++ b/lib/axlsx/workbook/worksheet/sheet_protection.rb
@@ -101,7 +101,7 @@ module Axlsx
 
       chars.collect! do |char|
         i += 1
-        char     = char.unpack('c')[0] << i #ord << i
+        char     = char.unpack('c')[0] << i # ord << i
         low_15   = char & 0x7fff
         high_15  = char & 0x7fff << 15
         high_15  = high_15 >> 15
diff --git a/lib/axlsx/workbook/worksheet/sheet_view.rb b/lib/axlsx/workbook/worksheet/sheet_view.rb
index 8c2a0cd5..dc41d01a 100644
--- a/lib/axlsx/workbook/worksheet/sheet_view.rb
+++ b/lib/axlsx/workbook/worksheet/sheet_view.rb
@@ -29,7 +29,7 @@ module Axlsx
     # @option options [Integer] zoom_scale_page_layout_view Zoom Scale Page Layout View
     # @option options [Integer] zoom_scale_sheet_layout_view Zoom Scale Page Break Preview
     def initialize(options = {})
-      #defaults
+      # defaults
       @color_id = @top_left_cell = @pane = nil
       @right_to_left = @show_formulas = @show_outline_symbols = @show_white_space = @tab_selected = @window_protection = false
       @default_grid_color = @show_grid_lines = @show_row_col_headers = @show_ruler = @show_zeros = true
diff --git a/lib/axlsx/workbook/worksheet/worksheet_hyperlink.rb b/lib/axlsx/workbook/worksheet/worksheet_hyperlink.rb
index f20d671d..60615f1c 100644
--- a/lib/axlsx/workbook/worksheet/worksheet_hyperlink.rb
+++ b/lib/axlsx/workbook/worksheet/worksheet_hyperlink.rb
@@ -25,7 +25,7 @@ module Axlsx
 
     serializable_attributes :display, :tooltip, :ref
 
-    #Cell location of hyperlink on worksheet.
+    # Cell location of hyperlink on worksheet.
     # @return [String]
     attr_reader :ref
 
diff --git a/lib/axlsx/workbook/worksheet/worksheet_hyperlinks.rb b/lib/axlsx/workbook/worksheet/worksheet_hyperlinks.rb
index 4771efb1..44c6125a 100644
--- a/lib/axlsx/workbook/worksheet/worksheet_hyperlinks.rb
+++ b/lib/axlsx/workbook/worksheet/worksheet_hyperlinks.rb
@@ -1,5 +1,5 @@
 module Axlsx
-  #A collection of hyperlink objects for a worksheet
+  # A collection of hyperlink objects for a worksheet
   class WorksheetHyperlinks < SimpleTypedList
     # Creates a new Hyperlinks collection
     # @param [Worksheet] worksheet the worksheet that owns these hyperlinks
diff --git a/test/content_type/tc_content_type.rb b/test/content_type/tc_content_type.rb
index f06554c8..c79352ff 100644
--- a/test/content_type/tc_content_type.rb
+++ b/test/content_type/tc_content_type.rb
@@ -15,7 +15,7 @@ class TestContentType < Test::Unit::TestCase
     o_path = "//xmlns:Override[@ContentType='%s']"
     d_path = "//xmlns:Default[@ContentType='%s']"
 
-    #default
+    # default
     assert_equal(@doc.xpath("//xmlns:Default").size, 2, "There should be 2 default types")
 
     node = @doc.xpath(d_path % Axlsx::XML_CT).first
@@ -24,7 +24,7 @@ class TestContentType < Test::Unit::TestCase
     node = @doc.xpath(d_path % Axlsx::RELS_CT).first
     assert_equal(node["Extension"], "#{Axlsx::RELS_EX}", "relationships content type invalid")
 
-    #overrride
+    # overrride
     assert_equal(@doc.xpath("//xmlns:Override").size, 4, "There should be 4 Override types")
 
     node = @doc.xpath(o_path % Axlsx::APP_CT).first
diff --git a/test/drawing/tc_pic.rb b/test/drawing/tc_pic.rb
index 6760fa58..56042de5 100644
--- a/test/drawing/tc_pic.rb
+++ b/test/drawing/tc_pic.rb
@@ -18,7 +18,7 @@ class TestPic < Test::Unit::TestCase
   end
 
   def test_anchor_swapping
-    #swap from one cell to two cell when end_at is specified
+    # swap from one cell to two cell when end_at is specified
     assert(@image.anchor.is_a?(Axlsx::OneCellAnchor))
     start_at = @image.anchor.from
     @image.end_at 10, 5
@@ -28,7 +28,7 @@ class TestPic < Test::Unit::TestCase
     assert_equal(10, @image.anchor.to.col)
     assert_equal(5, @image.anchor.to.row)
 
-    #swap from two cell to one cell when width or height are specified
+    # swap from two cell to one cell when width or height are specified
     @image.width = 200
     assert(@image.anchor.is_a?(Axlsx::OneCellAnchor))
     assert_equal(start_at.col, @image.anchor.from.col)
diff --git a/test/drawing/tc_pie_series.rb b/test/drawing/tc_pie_series.rb
index ce516f83..c3f5bb3a 100644
--- a/test/drawing/tc_pie_series.rb
+++ b/test/drawing/tc_pie_series.rb
@@ -27,5 +27,5 @@ class TestPieSeries < Test::Unit::TestCase
     doc = Nokogiri::XML(@series.to_xml_string)
     assert(doc.xpath("//srgbClr[@val='#{@series.colors[0]}']"))
   end
-  #TODO test unique serialization parts
+  # TODO test unique serialization parts
 end
diff --git a/test/profile.rb b/test/profile.rb
index 4805dad8..ef42c2f8 100644
--- a/test/profile.rb
+++ b/test/profile.rb
@@ -3,7 +3,7 @@
 $:.unshift "#{File.dirname(__FILE__)}/../lib"
 require 'axlsx'
 require 'ruby-prof'
-#RubyProf.measure_mode = RubyProf::MEMORY
+# RubyProf.measure_mode = RubyProf::MEMORY
 #
 row = []
 # Taking worst case scenario of all string data
diff --git a/test/stylesheet/tc_styles.rb b/test/stylesheet/tc_styles.rb
index 78e82354..1598a658 100644
--- a/test/stylesheet/tc_styles.rb
+++ b/test/stylesheet/tc_styles.rb
@@ -62,7 +62,7 @@ class TestStyles < Test::Unit::TestCase
   end
 
   def test_do_not_alter_options_in_add_style
-    #This should test all options, but for now - just the bits that we know caused some pain
+    # This should test all options, but for now - just the bits that we know caused some pain
     options = { :border => { :style => :thin, :color => "FF000000" } }
     @styles.add_style options
     assert_equal options[:border][:style], :thin, 'thin style is stil in option'
diff --git a/test/tc_package.rb b/test/tc_package.rb
index c8f35211..cc40a6e0 100644
--- a/test/tc_package.rb
+++ b/test/tc_package.rb
@@ -249,7 +249,7 @@ class TestPackage < Test::Unit::TestCase
 
   def test_parts
     p = @package.send(:parts)
-    #all parts have an entry
+    # all parts have an entry
     assert_equal(p.select { |part| part[:entry] =~ /_rels\/\.rels/ }.size, 1, "rels missing")
     assert_equal(p.select { |part| part[:entry] =~ /docProps\/core\.xml/ }.size, 1, "core missing")
     assert_equal(p.select { |part| part[:entry] =~ /docProps\/app\.xml/ }.size, 1, "app missing")
@@ -267,10 +267,10 @@ class TestPackage < Test::Unit::TestCase
     assert_equal(p.select { |part| part[:entry] =~ /xl\/pivotTables\/_rels\/pivotTable\d\.xml.rels/ }.size, @package.workbook.worksheets.first.pivot_tables.size, "one or more pivot tables rels missing")
     assert_equal(p.select { |part| part[:entry] =~ /xl\/pivotCache\/pivotCacheDefinition\d\.xml/ }.size, @package.workbook.worksheets.first.pivot_tables.size, "one or more pivot tables missing")
 
-    #no mystery parts
+    # no mystery parts
     assert_equal(25, p.size)
 
-    #sorted for correct MIME detection
+    # sorted for correct MIME detection
     assert_equal("[Content_Types].xml", p[0][:entry], "first entry should be `[Content_Types].xml`")
     assert_equal("_rels/.rels", p[1][:entry], "second entry should be `_rels/.rels`")
     assert_match(/\Axl\//, p[2][:entry], "third entry should begin with `xl/`")
@@ -278,7 +278,7 @@ class TestPackage < Test::Unit::TestCase
 
   def test_shared_strings_requires_part
     @package.use_shared_strings = true
-    @package.to_stream #ensure all cell_serializer paths are hit
+    @package.to_stream # ensure all cell_serializer paths are hit
     p = @package.send(:parts)
     assert_equal(p.select { |part| part[:entry] =~ /xl\/sharedStrings.xml/ }.size, 1, "shared strings table missing")
   end
diff --git a/test/util/tc_simple_typed_list.rb b/test/util/tc_simple_typed_list.rb
index abcacf26..fc1ab0a2 100644
--- a/test/util/tc_simple_typed_list.rb
+++ b/test/util/tc_simple_typed_list.rb
@@ -16,7 +16,7 @@ class TestSimpleTypedList < Test::Unit::TestCase
   end
 
   def test_indexed_based_assignment
-    #should not allow nil assignment
+    # should not allow nil assignment
     assert_raise(ArgumentError) { @list[0] = nil }
     assert_raise(ArgumentError) { @list[0] = "1" }
     assert_nothing_raised { @list[0] = 1 }
@@ -57,7 +57,7 @@ class TestSimpleTypedList < Test::Unit::TestCase
     @list.push 4
     assert_nothing_raised { @list.delete_at 3 }
     @list.unlock
-    #ignore garbage
+    # ignore garbage
     assert_nothing_raised { @list.delete 0 }
     assert_nothing_raised { @list.delete 9 }
   end
diff --git a/test/util/tc_validators.rb b/test/util/tc_validators.rb
index ba3edba6..7df2e41b 100644
--- a/test/util/tc_validators.rb
+++ b/test/util/tc_validators.rb
@@ -7,71 +7,71 @@ class TestValidators < Test::Unit::TestCase
   end
 
   def test_validators
-    #unsigned_int
+    # unsigned_int
     assert_nothing_raised { Axlsx.validate_unsigned_int 1 }
     assert_nothing_raised { Axlsx.validate_unsigned_int(+1) }
     assert_raise(ArgumentError) { Axlsx.validate_unsigned_int(-1) }
     assert_raise(ArgumentError) { Axlsx.validate_unsigned_int('1') }
 
-    #int
+    # int
     assert_nothing_raised { Axlsx.validate_int(1) }
     assert_nothing_raised { Axlsx.validate_int(-1) }
     assert_raise(ArgumentError) { Axlsx.validate_int('a') }
     assert_raise(ArgumentError) { Axlsx.validate_int(Array) }
 
-    #boolean (as 0 or 1, :true, :false, true, false, or "true," "false")
+    # boolean (as 0 or 1, :true, :false, true, false, or "true," "false")
     [0, 1, :true, :false, true, false, "true", "false"].each do |v|
       assert_nothing_raised { Axlsx.validate_boolean 0 }
     end
     assert_raise(ArgumentError) { Axlsx.validate_boolean 2 }
 
-    #string
+    # string
     assert_nothing_raised { Axlsx.validate_string "1" }
     assert_raise(ArgumentError) { Axlsx.validate_string 2 }
     assert_raise(ArgumentError) { Axlsx.validate_string false }
 
-    #float
+    # float
     assert_nothing_raised { Axlsx.validate_float 1.0 }
     assert_raise(ArgumentError) { Axlsx.validate_float 2 }
     assert_raise(ArgumentError) { Axlsx.validate_float false }
 
-    #pattern_type
+    # pattern_type
     assert_nothing_raised { Axlsx.validate_pattern_type :none }
     assert_raise(ArgumentError) { Axlsx.validate_pattern_type "none" }
     assert_raise(ArgumentError) { Axlsx.validate_pattern_type "crazy_pattern" }
     assert_raise(ArgumentError) { Axlsx.validate_pattern_type false }
 
-    #gradient_type
+    # gradient_type
     assert_nothing_raised { Axlsx.validate_gradient_type :path }
     assert_raise(ArgumentError) { Axlsx.validate_gradient_type nil }
     assert_raise(ArgumentError) { Axlsx.validate_gradient_type "fractal" }
     assert_raise(ArgumentError) { Axlsx.validate_gradient_type false }
 
-    #horizontal alignment
+    # horizontal alignment
     assert_nothing_raised { Axlsx.validate_horizontal_alignment :general }
     assert_raise(ArgumentError) { Axlsx.validate_horizontal_alignment nil }
     assert_raise(ArgumentError) { Axlsx.validate_horizontal_alignment "wavy" }
     assert_raise(ArgumentError) { Axlsx.validate_horizontal_alignment false }
 
-    #vertical alignment
+    # vertical alignment
     assert_nothing_raised { Axlsx.validate_vertical_alignment :top }
     assert_raise(ArgumentError) { Axlsx.validate_vertical_alignment nil }
     assert_raise(ArgumentError) { Axlsx.validate_vertical_alignment "dynamic" }
     assert_raise(ArgumentError) { Axlsx.validate_vertical_alignment false }
 
-    #contentType
+    # contentType
     assert_nothing_raised { Axlsx.validate_content_type Axlsx::WORKBOOK_CT }
     assert_raise(ArgumentError) { Axlsx.validate_content_type nil }
     assert_raise(ArgumentError) { Axlsx.validate_content_type "http://some.url" }
     assert_raise(ArgumentError) { Axlsx.validate_content_type false }
 
-    #relationshipType
+    # relationshipType
     assert_nothing_raised { Axlsx.validate_relationship_type Axlsx::WORKBOOK_R }
     assert_raise(ArgumentError) { Axlsx.validate_relationship_type nil }
     assert_raise(ArgumentError) { Axlsx.validate_relationship_type "http://some.url" }
     assert_raise(ArgumentError) { Axlsx.validate_relationship_type false }
 
-    #number_with_unit
+    # number_with_unit
     assert_nothing_raised { Axlsx.validate_number_with_unit "210mm" }
     assert_nothing_raised { Axlsx.validate_number_with_unit "8.5in" }
     assert_nothing_raised { Axlsx.validate_number_with_unit "29.7cm" }
@@ -84,7 +84,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_number_with_unit "mm" }
     assert_raise(ArgumentError) { Axlsx.validate_number_with_unit "-29cm" }
 
-    #scale_10_400
+    # scale_10_400
     assert_nothing_raised { Axlsx.validate_scale_10_400 10 }
     assert_nothing_raised { Axlsx.validate_scale_10_400 100 }
     assert_nothing_raised { Axlsx.validate_scale_10_400 400 }
@@ -93,7 +93,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_scale_10_400 400.1 }
     assert_raise(ArgumentError) { Axlsx.validate_scale_10_400 "99" }
 
-    #scale_0_10_400
+    # scale_0_10_400
     assert_nothing_raised { Axlsx.validate_scale_0_10_400 0 }
     assert_nothing_raised { Axlsx.validate_scale_0_10_400 10 }
     assert_nothing_raised { Axlsx.validate_scale_0_10_400 100 }
@@ -103,7 +103,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_scale_0_10_400 400.1 }
     assert_raise(ArgumentError) { Axlsx.validate_scale_0_10_400 "99" }
 
-    #page_orientation
+    # page_orientation
     assert_nothing_raised { Axlsx.validate_page_orientation :default }
     assert_nothing_raised { Axlsx.validate_page_orientation :landscape }
     assert_nothing_raised { Axlsx.validate_page_orientation :portrait }
@@ -111,7 +111,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_page_orientation 1 }
     assert_raise(ArgumentError) { Axlsx.validate_page_orientation "landscape" }
 
-    #data_validation_error_style
+    # data_validation_error_style
     [:information, :stop, :warning].each do |sym|
       assert_nothing_raised { Axlsx.validate_data_validation_error_style sym }
     end
@@ -119,7 +119,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_data_validation_error_style 'warning' }
     assert_raise(ArgumentError) { Axlsx.validate_data_validation_error_style 0 }
 
-    #data_validation_operator
+    # data_validation_operator
     [:lessThan, :lessThanOrEqual, :equal, :notEqual, :greaterThanOrEqual, :greaterThan, :between, :notBetween].each do |sym|
       assert_nothing_raised { Axlsx.validate_data_validation_operator sym }
     end
@@ -127,7 +127,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_data_validation_error_style 'lessThan' }
     assert_raise(ArgumentError) { Axlsx.validate_data_validation_error_style 0 }
 
-    #data_validation_type
+    # data_validation_type
     [:custom, :data, :decimal, :list, :none, :textLength, :date, :time, :whole].each do |sym|
       assert_nothing_raised { Axlsx.validate_data_validation_type sym }
     end
@@ -135,7 +135,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_data_validation_error_style 'decimal' }
     assert_raise(ArgumentError) { Axlsx.validate_data_validation_error_style 0 }
 
-    #sheet_view_type
+    # sheet_view_type
     [:normal, :page_break_preview, :page_layout].each do |sym|
       assert_nothing_raised { Axlsx.validate_sheet_view_type sym }
     end
@@ -143,7 +143,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_data_validation_error_style 'page_layout' }
     assert_raise(ArgumentError) { Axlsx.validate_data_validation_error_style 0 }
 
-    #active_pane_type
+    # active_pane_type
     [:bottom_left, :bottom_right, :top_left, :top_right].each do |sym|
       assert_nothing_raised { Axlsx.validate_pane_type sym }
     end
@@ -151,7 +151,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_pane_type 'bottom_left' }
     assert_raise(ArgumentError) { Axlsx.validate_pane_type 0 }
 
-    #split_state_type
+    # split_state_type
     [:frozen, :frozen_split, :split].each do |sym|
       assert_nothing_raised { Axlsx.validate_split_state_type sym }
     end
@@ -159,7 +159,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_split_state_type 'frozen_split' }
     assert_raise(ArgumentError) { Axlsx.validate_split_state_type 0 }
 
-    #display_blanks_as
+    # display_blanks_as
     [:gap, :span, :zero].each do |sym|
       assert_nothing_raised { Axlsx.validate_display_blanks_as sym }
     end
@@ -167,7 +167,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_display_blanks_as 'other_blank' }
     assert_raise(ArgumentError) { Axlsx.validate_display_blanks_as 0 }
 
-    #view_visibility
+    # view_visibility
     [:visible, :hidden, :very_hidden].each do |sym|
       assert_nothing_raised { Axlsx.validate_view_visibility sym }
     end
@@ -175,7 +175,7 @@ class TestValidators < Test::Unit::TestCase
     assert_raise(ArgumentError) { Axlsx.validate_view_visibility 'other_visibility' }
     assert_raise(ArgumentError) { Axlsx.validate_view_visibility 0 }
 
-    #marker_symbol
+    # marker_symbol
     [:default, :circle, :dash, :diamond, :dot, :picture, :plus, :square, :star, :triangle, :x].each do |sym|
       assert_nothing_raised { Axlsx.validate_marker_symbol sym }
     end
diff --git a/test/workbook/tc_workbook.rb b/test/workbook/tc_workbook.rb
index c5a72e48..c085ed91 100644
--- a/test/workbook/tc_workbook.rb
+++ b/test/workbook/tc_workbook.rb
@@ -90,7 +90,7 @@ class TestWorkbook < Test::Unit::TestCase
   end
 
   def test_relationships
-    #current relationship size is 1 due to style relation
+    # current relationship size is 1 due to style relation
     assert(@wb.relationships.size == 1)
     @wb.add_worksheet
     assert(@wb.relationships.size == 2)
diff --git a/test/workbook/worksheet/tc_cell.rb b/test/workbook/worksheet/tc_cell.rb
index a4aab11c..f5264115 100644
--- a/test/workbook/worksheet/tc_cell.rb
+++ b/test/workbook/worksheet/tc_cell.rb
@@ -112,7 +112,7 @@ class TestCell < Test::Unit::TestCase
   end
 
   def test_col_ref
-    #TODO move to axlsx spec
+    # TODO move to axlsx spec
     assert_equal(Axlsx.col_ref(0), "A")
   end
 
diff --git a/test/workbook/worksheet/tc_col.rb b/test/workbook/worksheet/tc_col.rb
index 80b228d0..908e9931 100644
--- a/test/workbook/worksheet/tc_col.rb
+++ b/test/workbook/worksheet/tc_col.rb
@@ -86,6 +86,6 @@ class TestCol < Test::Unit::TestCase
     assert_equal(@col.style, nil)
     @col.style = 1
     assert_equal(@col.style, 1)
-    #TODO check that the style specified is actually in the styles xfs collection
+    # TODO check that the style specified is actually in the styles xfs collection
   end
 end
diff --git a/test/workbook/worksheet/tc_conditional_formatting.rb b/test/workbook/worksheet/tc_conditional_formatting.rb
index dcbb3ca6..2c8292ee 100644
--- a/test/workbook/worksheet/tc_conditional_formatting.rb
+++ b/test/workbook/worksheet/tc_conditional_formatting.rb
@@ -187,7 +187,7 @@ class TestConditionalFormatting < Test::Unit::TestCase
   end
 
   def test_percent
-    assert_raise(ArgumentError) { @cfr.percent = "10%" } #WRONG!
+    assert_raise(ArgumentError) { @cfr.percent = "10%" } # WRONG!
     assert_nothing_raised { @cfr.percent = true }
     assert_equal(@cfr.percent, true)
   end
diff --git a/test/workbook/worksheet/tc_data_validation.rb b/test/workbook/worksheet/tc_data_validation.rb
index 09ce8290..3dffee39 100644
--- a/test/workbook/worksheet/tc_data_validation.rb
+++ b/test/workbook/worksheet/tc_data_validation.rb
@@ -5,7 +5,7 @@ class TestDataValidation < Test::Unit::TestCase
   include CaptureWarnings
 
   def setup
-    #inverse defaults
+    # inverse defaults
     @boolean_options = { :allowBlank => false, :hideDropDown => true, :showErrorMessage => false, :showInputMessage => true }
     @nil_options = { :formula1 => 'foo', :formula2 => 'foo', :errorTitle => 'foo', :operator => :lessThan, :prompt => 'foo', :promptTitle => 'foo', :sqref => 'foo' }
     @type_option = { :type => :whole }
@@ -171,7 +171,7 @@ class TestDataValidation < Test::Unit::TestCase
 
     doc = Nokogiri::XML.parse(@ws.to_xml_string)
 
-    #test attributes
+    # test attributes
     assert_equal(1, doc.xpath("//xmlns:worksheet/xmlns:dataValidations[@count='1']/xmlns:dataValidation[@sqref='A1']
       [@promptTitle='Be carful!'][@prompt='Only values between 5 and 10'][@operator='between'][@errorTitle='Wrong input']
       [@error='Only values between 5 and 10'][@showErrorMessage=1][@allowBlank=1][@showInputMessage=1][@type='whole']
@@ -181,11 +181,11 @@ class TestDataValidation < Test::Unit::TestCase
       [@error='Only values between 5 and 10'][@showErrorMessage=1][@allowBlank=1][@showInputMessage=1]
       [@type='whole'][@errorStyle='information']")
 
-    #test forumula1
+    # test forumula1
     assert_equal(1, doc.xpath("//xmlns:worksheet/xmlns:dataValidations/xmlns:dataValidation/xmlns:formula1").size)
     assert doc.xpath("//xmlns:worksheet/xmlns:dataValidations/xmlns:dataValidation/xmlns:formula1='5'")
 
-    #test forumula2
+    # test forumula2
     assert_equal(1, doc.xpath("//xmlns:worksheet/xmlns:dataValidations/xmlns:dataValidation/xmlns:formula2").size)
     assert doc.xpath("//xmlns:worksheet/xmlns:dataValidations/xmlns:dataValidation/xmlns:formula2='10'")
   end
@@ -200,7 +200,7 @@ class TestDataValidation < Test::Unit::TestCase
 
     doc = Nokogiri::XML.parse(@ws.to_xml_string)
 
-    #test attributes
+    # test attributes
     assert_equal(1, doc.xpath("//xmlns:worksheet/xmlns:dataValidations[@count='1']/xmlns:dataValidation[@sqref='A1']
       [@promptTitle='Be carful!'][@prompt='Only values from list'][@errorTitle='Wrong input'][@error='Only values from list']
       [@showErrorMessage=1][@allowBlank=1][@showInputMessage=1][@showDropDown=1][@type='list']
@@ -209,7 +209,7 @@ class TestDataValidation < Test::Unit::TestCase
       [@promptTitle='Be carful!'][@prompt='Only values from list'][@errorTitle='Wrong input'][@error='Only values from list']
       [@showErrorMessage=1][@allowBlank=1][@showInputMessage=1][@showDropDown=1][@type='list'][@errorStyle='stop']")
 
-    #test forumula1
+    # test forumula1
     assert_equal(1, doc.xpath("//xmlns:worksheet/xmlns:dataValidations/xmlns:dataValidation/xmlns:formula1").size)
     assert doc.xpath("//xmlns:worksheet/xmlns:dataValidations/xmlns:dataValidation/xmlns:formula1='A1:A5'")
   end
@@ -224,7 +224,7 @@ class TestDataValidation < Test::Unit::TestCase
 
     doc = Nokogiri::XML.parse(@ws.to_xml_string)
 
-    #test attributes
+    # test attributes
     assert_equal(1, doc.xpath("//xmlns:worksheet/xmlns:dataValidations[@count='1']/xmlns:dataValidation[@sqref='A1'][@promptTitle='Be carful!']
       [@prompt='Only values corresponding formula'][@errorTitle='Wrong input'][@error='Only values corresponding formula'][@showErrorMessage=1]
       [@allowBlank=1][@showInputMessage=1][@type='custom'][@errorStyle='stop']").size)
@@ -232,7 +232,7 @@ class TestDataValidation < Test::Unit::TestCase
       [@prompt='Only values corresponding formula'][@errorTitle='Wrong input'][@error='Only values corresponding formula']
       [@showErrorMessage=1][@allowBlank=1][@showInputMessage=1][@type='custom'][@errorStyle='stop']")
 
-    #test forumula1
+    # test forumula1
     assert_equal(1, doc.xpath("//xmlns:worksheet/xmlns:dataValidations/xmlns:dataValidation/xmlns:formula1").size)
     assert doc.xpath("//xmlns:worksheet/xmlns:dataValidations/xmlns:dataValidation/xmlns:formula1='=5/2'")
   end
@@ -251,7 +251,7 @@ class TestDataValidation < Test::Unit::TestCase
 
     doc = Nokogiri::XML.parse(@ws.to_xml_string)
 
-    #test attributes
+    # test attributes
     assert_equal(1, doc.xpath("//xmlns:worksheet/xmlns:dataValidations[@count='2']/xmlns:dataValidation[@sqref='A1']
       [@promptTitle='Be carful!'][@prompt='Only values between 5 and 10'][@operator='between'][@errorTitle='Wrong input']
       [@error='Only values between 5 and 10'][@showErrorMessage=1][@allowBlank=1][@showInputMessage=1][@type='whole']
@@ -261,7 +261,7 @@ class TestDataValidation < Test::Unit::TestCase
       [@error='Only values between 5 and 10'][@showErrorMessage=1][@allowBlank=1][@showInputMessage=1]
       [@type='whole'][@errorStyle='information']")
 
-    #test attributes
+    # test attributes
     assert_equal(1, doc.xpath("//xmlns:worksheet/xmlns:dataValidations[@count='2']/xmlns:dataValidation[@sqref='B1']
       [@promptTitle='Be carful!'][@prompt='Only values from list'][@errorTitle='Wrong input'][@error='Only values from list']
       [@showErrorMessage=1][@allowBlank=1][@showInputMessage=1][@showDropDown=1][@type='list']
diff --git a/test/workbook/worksheet/tc_pane.rb b/test/workbook/worksheet/tc_pane.rb
index fef1eb63..9a16866b 100644
--- a/test/workbook/worksheet/tc_pane.rb
+++ b/test/workbook/worksheet/tc_pane.rb
@@ -3,7 +3,7 @@ require 'tc_helper.rb'
 
 class TestPane < Test::Unit::TestCase
   def setup
-    #inverse defaults for booleans
+    # inverse defaults for booleans
     @nil_options = { :active_pane => :bottom_left, :state => :frozen, :top_left_cell => 'A2' }
     @int_0_options = { :x_split => 2, :y_split => 2 }
     @options = @nil_options.merge(@int_0_options)
diff --git a/test/workbook/worksheet/tc_sheet_protection.rb b/test/workbook/worksheet/tc_sheet_protection.rb
index 8d5452cc..b14f3e03 100644
--- a/test/workbook/worksheet/tc_sheet_protection.rb
+++ b/test/workbook/worksheet/tc_sheet_protection.rb
@@ -22,7 +22,7 @@ require 'tc_helper.rb'
 
 class TestSheetProtection < Test::Unit::TestCase
   def setup
-    #inverse defaults
+    # inverse defaults
     @boolean_options = { :sheet => false, :objects => true, :scenarios => true, :format_cells => false,
                          :format_columns => false, :format_rows => false, :insert_columns => false, :insert_rows => false,
                          :insert_hyperlinks => false, :delete_columns => false, :delete_rows => false, :select_locked_cells => true,
diff --git a/test/workbook/worksheet/tc_sheet_view.rb b/test/workbook/worksheet/tc_sheet_view.rb
index fb8367a8..03030d2c 100644
--- a/test/workbook/worksheet/tc_sheet_view.rb
+++ b/test/workbook/worksheet/tc_sheet_view.rb
@@ -3,7 +3,7 @@ require 'tc_helper.rb'
 
 class TestSheetView < Test::Unit::TestCase
   def setup
-    #inverse defaults for booleans
+    # inverse defaults for booleans
     @boolean_options = { :right_to_left => true, :show_formulas => true, :show_outline_symbols => true,
       :show_white_space => true, :tab_selected => true, :default_grid_color => false, :show_grid_lines => false,
       :show_row_col_headers => false, :show_ruler => false, :show_zeros => false, :window_protection => true }