Fix Style/RedundantFileExtensionInRequire offense

111 files changed, 117 insertions, 111 deletions

diff --git a/test/content_type/tc_content_type.rb b/test/content_type/tc_content_type.rb
index 7cbaf5d5..e94f311e 100644
--- a/test/content_type/tc_content_type.rb
+++ b/test/content_type/tc_content_type.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestContentType < Test::Unit::TestCase
   def setup
diff --git a/test/content_type/tc_default.rb b/test/content_type/tc_default.rb
index 460cf017..e3d8d75e 100644
--- a/test/content_type/tc_default.rb
+++ b/test/content_type/tc_default.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestDefault < Test::Unit::TestCase
   def test_content_type_restriction
diff --git a/test/content_type/tc_override.rb b/test/content_type/tc_override.rb
index ff00df94..ad0699b5 100644
--- a/test/content_type/tc_override.rb
+++ b/test/content_type/tc_override.rb
@@ -1,4 +1,5 @@
-require 'tc_helper.rb'
+require 'tc_helper'
+
 class TestOverride < Test::Unit::TestCase
   def test_content_type_restriction
     assert_raise(ArgumentError, "requires known content type") { Axlsx::Override.new :ContentType => "asdf" }
diff --git a/test/doc_props/tc_app.rb b/test/doc_props/tc_app.rb
index 94358fc5..fbbe0b67 100644
--- a/test/doc_props/tc_app.rb
+++ b/test/doc_props/tc_app.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestApp < Test::Unit::TestCase
   def setup
diff --git a/test/doc_props/tc_core.rb b/test/doc_props/tc_core.rb
index 6aafca3e..6d0ce604 100644
--- a/test/doc_props/tc_core.rb
+++ b/test/doc_props/tc_core.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestCore < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_area_chart.rb b/test/drawing/tc_area_chart.rb
index 64a4cedb..14449349 100644
--- a/test/drawing/tc_area_chart.rb
+++ b/test/drawing/tc_area_chart.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestAreaChart < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_area_series.rb b/test/drawing/tc_area_series.rb
index 0ac562b3..d77e241d 100644
--- a/test/drawing/tc_area_series.rb
+++ b/test/drawing/tc_area_series.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestAreaSeries < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_axes.rb b/test/drawing/tc_axes.rb
index eabf9a8d..27a90b0b 100644
--- a/test/drawing/tc_axes.rb
+++ b/test/drawing/tc_axes.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestAxes < Test::Unit::TestCase
   def test_constructor_requires_cat_axis_first
diff --git a/test/drawing/tc_axis.rb b/test/drawing/tc_axis.rb
index e9269b6e..198a4cf3 100644
--- a/test/drawing/tc_axis.rb
+++ b/test/drawing/tc_axis.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestAxis < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_bar_3D_chart.rb b/test/drawing/tc_bar_3D_chart.rb
index a2e245f6..aaef0312 100644
--- a/test/drawing/tc_bar_3D_chart.rb
+++ b/test/drawing/tc_bar_3D_chart.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestBar3DChart < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_bar_chart.rb b/test/drawing/tc_bar_chart.rb
index be5514c4..9fd52530 100644
--- a/test/drawing/tc_bar_chart.rb
+++ b/test/drawing/tc_bar_chart.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestBarChart < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_bar_series.rb b/test/drawing/tc_bar_series.rb
index 0be791ee..bbc18b1d 100644
--- a/test/drawing/tc_bar_series.rb
+++ b/test/drawing/tc_bar_series.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestBarSeries < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_bubble_chart.rb b/test/drawing/tc_bubble_chart.rb
index a0e27b1e..e596c095 100644
--- a/test/drawing/tc_bubble_chart.rb
+++ b/test/drawing/tc_bubble_chart.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestBubbleChart < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_bubble_series.rb b/test/drawing/tc_bubble_series.rb
index d7edbdad..ef7875ac 100644
--- a/test/drawing/tc_bubble_series.rb
+++ b/test/drawing/tc_bubble_series.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestBubbleSeries < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_cat_axis.rb b/test/drawing/tc_cat_axis.rb
index c7eaaedc..bae314da 100644
--- a/test/drawing/tc_cat_axis.rb
+++ b/test/drawing/tc_cat_axis.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestCatAxis < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_chart.rb b/test/drawing/tc_chart.rb
index 8bbc89c4..b78a82fb 100644
--- a/test/drawing/tc_chart.rb
+++ b/test/drawing/tc_chart.rb
@@ -1,6 +1,6 @@
 $LOAD_PATH.unshift "#{File.dirname(__FILE__)}/../"
 
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestChart < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_data_source.rb b/test/drawing/tc_data_source.rb
index 70d52d11..4148439b 100644
--- a/test/drawing/tc_data_source.rb
+++ b/test/drawing/tc_data_source.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestNumDataSource < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_drawing.rb b/test/drawing/tc_drawing.rb
index a0cf9f98..d8c5d1e9 100644
--- a/test/drawing/tc_drawing.rb
+++ b/test/drawing/tc_drawing.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestDrawing < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_graphic_frame.rb b/test/drawing/tc_graphic_frame.rb
index 30479f0f..8b69040a 100644
--- a/test/drawing/tc_graphic_frame.rb
+++ b/test/drawing/tc_graphic_frame.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestGraphicFrame < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_hyperlink.rb b/test/drawing/tc_hyperlink.rb
index 8ae5d01e..b9df3ad9 100644
--- a/test/drawing/tc_hyperlink.rb
+++ b/test/drawing/tc_hyperlink.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestHyperlink < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_line_3d_chart.rb b/test/drawing/tc_line_3d_chart.rb
index f50f52cb..618439ff 100644
--- a/test/drawing/tc_line_3d_chart.rb
+++ b/test/drawing/tc_line_3d_chart.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestLine3DChart < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_line_chart.rb b/test/drawing/tc_line_chart.rb
index fe159bbb..98fecc72 100644
--- a/test/drawing/tc_line_chart.rb
+++ b/test/drawing/tc_line_chart.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestLineChart < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_line_series.rb b/test/drawing/tc_line_series.rb
index b125337e..b0435488 100644
--- a/test/drawing/tc_line_series.rb
+++ b/test/drawing/tc_line_series.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestLineSeries < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_marker.rb b/test/drawing/tc_marker.rb
index 7a052a9f..8f521128 100644
--- a/test/drawing/tc_marker.rb
+++ b/test/drawing/tc_marker.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestMarker < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_num_data.rb b/test/drawing/tc_num_data.rb
index 772bbcfc..b169faef 100644
--- a/test/drawing/tc_num_data.rb
+++ b/test/drawing/tc_num_data.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestNumData < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_num_val.rb b/test/drawing/tc_num_val.rb
index a6bbf71a..3168bd89 100644
--- a/test/drawing/tc_num_val.rb
+++ b/test/drawing/tc_num_val.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestNumVal < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_one_cell_anchor.rb b/test/drawing/tc_one_cell_anchor.rb
index 25704a83..0f39d103 100644
--- a/test/drawing/tc_one_cell_anchor.rb
+++ b/test/drawing/tc_one_cell_anchor.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestOneCellAnchor < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_pic.rb b/test/drawing/tc_pic.rb
index 6fb54822..45014f53 100644
--- a/test/drawing/tc_pic.rb
+++ b/test/drawing/tc_pic.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPic < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_picture_locking.rb b/test/drawing/tc_picture_locking.rb
index 4febc858..a7daf79b 100644
--- a/test/drawing/tc_picture_locking.rb
+++ b/test/drawing/tc_picture_locking.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPictureLocking < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_pie_3D_chart.rb b/test/drawing/tc_pie_3D_chart.rb
index 94438e16..3a1236db 100644
--- a/test/drawing/tc_pie_3D_chart.rb
+++ b/test/drawing/tc_pie_3D_chart.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPie3DChart < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_pie_series.rb b/test/drawing/tc_pie_series.rb
index 0a7961eb..96c61f94 100644
--- a/test/drawing/tc_pie_series.rb
+++ b/test/drawing/tc_pie_series.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPieSeries < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_scaling.rb b/test/drawing/tc_scaling.rb
index f369161c..cc02ee92 100644
--- a/test/drawing/tc_scaling.rb
+++ b/test/drawing/tc_scaling.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestScaling < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_scatter_chart.rb b/test/drawing/tc_scatter_chart.rb
index 6e174567..2712da99 100644
--- a/test/drawing/tc_scatter_chart.rb
+++ b/test/drawing/tc_scatter_chart.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestScatterChart < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_scatter_series.rb b/test/drawing/tc_scatter_series.rb
index ba04c980..cc5a4d2e 100644
--- a/test/drawing/tc_scatter_series.rb
+++ b/test/drawing/tc_scatter_series.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestScatterSeries < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_ser_axis.rb b/test/drawing/tc_ser_axis.rb
index de2f5db2..3b752635 100644
--- a/test/drawing/tc_ser_axis.rb
+++ b/test/drawing/tc_ser_axis.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestSerAxis < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_series.rb b/test/drawing/tc_series.rb
index 8ffa5158..fad4e763 100644
--- a/test/drawing/tc_series.rb
+++ b/test/drawing/tc_series.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestSeries < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_series_title.rb b/test/drawing/tc_series_title.rb
index 260ad826..14eb0fba 100644
--- a/test/drawing/tc_series_title.rb
+++ b/test/drawing/tc_series_title.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestSeriesTitle < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_str_data.rb b/test/drawing/tc_str_data.rb
index a2757d02..408e4b98 100644
--- a/test/drawing/tc_str_data.rb
+++ b/test/drawing/tc_str_data.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestStrData < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_str_val.rb b/test/drawing/tc_str_val.rb
index e7b72197..39b96e08 100644
--- a/test/drawing/tc_str_val.rb
+++ b/test/drawing/tc_str_val.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestStrVal < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_title.rb b/test/drawing/tc_title.rb
index 3a0609da..e175871f 100644
--- a/test/drawing/tc_title.rb
+++ b/test/drawing/tc_title.rb
@@ -1,6 +1,6 @@
 $LOAD_PATH.unshift "#{File.dirname(__FILE__)}/../"
 
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestTitle < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_two_cell_anchor.rb b/test/drawing/tc_two_cell_anchor.rb
index 55cd9ca6..321cc45a 100644
--- a/test/drawing/tc_two_cell_anchor.rb
+++ b/test/drawing/tc_two_cell_anchor.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestTwoCellAnchor < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_val_axis.rb b/test/drawing/tc_val_axis.rb
index 76574226..b3a6fb39 100644
--- a/test/drawing/tc_val_axis.rb
+++ b/test/drawing/tc_val_axis.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestValAxis < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_view_3D.rb b/test/drawing/tc_view_3D.rb
index 0b666014..d5550a73 100644
--- a/test/drawing/tc_view_3D.rb
+++ b/test/drawing/tc_view_3D.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestView3D < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_vml_drawing.rb b/test/drawing/tc_vml_drawing.rb
index 3bfc613f..ad12642a 100644
--- a/test/drawing/tc_vml_drawing.rb
+++ b/test/drawing/tc_vml_drawing.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestVmlDrawing < Test::Unit::TestCase
   def setup
diff --git a/test/drawing/tc_vml_shape.rb b/test/drawing/tc_vml_shape.rb
index 0f2fb3b5..188114b6 100644
--- a/test/drawing/tc_vml_shape.rb
+++ b/test/drawing/tc_vml_shape.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestVmlShape < Test::Unit::TestCase
   def setup
diff --git a/test/rels/tc_relationship.rb b/test/rels/tc_relationship.rb
index 71208ec7..b38c47e1 100644
--- a/test/rels/tc_relationship.rb
+++ b/test/rels/tc_relationship.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestRelationships < Test::Unit::TestCase
   def test_instances_with_different_attributes_have_unique_ids
diff --git a/test/rels/tc_relationships.rb b/test/rels/tc_relationships.rb
index ba153ce7..488880b4 100644
--- a/test/rels/tc_relationships.rb
+++ b/test/rels/tc_relationships.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestRelationships < Test::Unit::TestCase
   def test_for
diff --git a/test/stylesheet/tc_border.rb b/test/stylesheet/tc_border.rb
index 4060dbf5..132dc68a 100644
--- a/test/stylesheet/tc_border.rb
+++ b/test/stylesheet/tc_border.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestBorder < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_border_pr.rb b/test/stylesheet/tc_border_pr.rb
index 90f18586..c82b282d 100644
--- a/test/stylesheet/tc_border_pr.rb
+++ b/test/stylesheet/tc_border_pr.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestBorderPr < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_cell_alignment.rb b/test/stylesheet/tc_cell_alignment.rb
index 28e0d272..79ed858d 100644
--- a/test/stylesheet/tc_cell_alignment.rb
+++ b/test/stylesheet/tc_cell_alignment.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestCellAlignment < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_cell_protection.rb b/test/stylesheet/tc_cell_protection.rb
index 631192de..e70bb1b8 100644
--- a/test/stylesheet/tc_cell_protection.rb
+++ b/test/stylesheet/tc_cell_protection.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestCellProtection < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_cell_style.rb b/test/stylesheet/tc_cell_style.rb
index d62e68ed..a2990967 100644
--- a/test/stylesheet/tc_cell_style.rb
+++ b/test/stylesheet/tc_cell_style.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestCellStyle < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_color.rb b/test/stylesheet/tc_color.rb
index 336c093f..1c14278a 100644
--- a/test/stylesheet/tc_color.rb
+++ b/test/stylesheet/tc_color.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestColor < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_dxf.rb b/test/stylesheet/tc_dxf.rb
index bac649dd..014f794e 100644
--- a/test/stylesheet/tc_dxf.rb
+++ b/test/stylesheet/tc_dxf.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestDxf < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_fill.rb b/test/stylesheet/tc_fill.rb
index 6e586e45..89e746da 100644
--- a/test/stylesheet/tc_fill.rb
+++ b/test/stylesheet/tc_fill.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestFill < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_font.rb b/test/stylesheet/tc_font.rb
index 3eaec01a..d3d5fdff 100644
--- a/test/stylesheet/tc_font.rb
+++ b/test/stylesheet/tc_font.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestFont < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_gradient_fill.rb b/test/stylesheet/tc_gradient_fill.rb
index 7f0a4013..fa7ca434 100644
--- a/test/stylesheet/tc_gradient_fill.rb
+++ b/test/stylesheet/tc_gradient_fill.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestGradientFill < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_gradient_stop.rb b/test/stylesheet/tc_gradient_stop.rb
index 48b0d69d..34b18e36 100644
--- a/test/stylesheet/tc_gradient_stop.rb
+++ b/test/stylesheet/tc_gradient_stop.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestGradientStop < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_num_fmt.rb b/test/stylesheet/tc_num_fmt.rb
index f75db1d1..33d91f97 100644
--- a/test/stylesheet/tc_num_fmt.rb
+++ b/test/stylesheet/tc_num_fmt.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestNumFmt < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_pattern_fill.rb b/test/stylesheet/tc_pattern_fill.rb
index 9e122d19..b2e77b7a 100644
--- a/test/stylesheet/tc_pattern_fill.rb
+++ b/test/stylesheet/tc_pattern_fill.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPatternFill < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_styles.rb b/test/stylesheet/tc_styles.rb
index 415bf968..f64a1cba 100644
--- a/test/stylesheet/tc_styles.rb
+++ b/test/stylesheet/tc_styles.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestStyles < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_table_style.rb b/test/stylesheet/tc_table_style.rb
index 6c15ebae..cd07733a 100644
--- a/test/stylesheet/tc_table_style.rb
+++ b/test/stylesheet/tc_table_style.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestTableStyle < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_table_style_element.rb b/test/stylesheet/tc_table_style_element.rb
index 6dcbedd9..febb8b65 100644
--- a/test/stylesheet/tc_table_style_element.rb
+++ b/test/stylesheet/tc_table_style_element.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestTableStyleElement < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_table_styles.rb b/test/stylesheet/tc_table_styles.rb
index 4fdee796..f09f4e2d 100644
--- a/test/stylesheet/tc_table_styles.rb
+++ b/test/stylesheet/tc_table_styles.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestTableStyles < Test::Unit::TestCase
   def setup
diff --git a/test/stylesheet/tc_xf.rb b/test/stylesheet/tc_xf.rb
index 71ce71a4..a381c976 100644
--- a/test/stylesheet/tc_xf.rb
+++ b/test/stylesheet/tc_xf.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestXf < Test::Unit::TestCase
   def setup
diff --git a/test/tc_axlsx.rb b/test/tc_axlsx.rb
index fdc10119..21c0c82a 100644
--- a/test/tc_axlsx.rb
+++ b/test/tc_axlsx.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestAxlsx < Test::Unit::TestCase
   def setup_wide
diff --git a/test/tc_helper.rb b/test/tc_helper.rb
index fb85870a..cd3b3262 100644
--- a/test/tc_helper.rb
+++ b/test/tc_helper.rb
@@ -8,4 +8,4 @@ end
 require 'test/unit'
 require "timecop"
 require 'webmock/test_unit'
-require "axlsx.rb"
+require "axlsx"
diff --git a/test/tc_package.rb b/test/tc_package.rb
index 34b07aa4..062c9c88 100644
--- a/test/tc_package.rb
+++ b/test/tc_package.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 require 'support/capture_warnings'
 
 class TestPackage < Test::Unit::TestCase
diff --git a/test/util/tc_mime_type_utils.rb b/test/util/tc_mime_type_utils.rb
index 796c8f3a..ee7f447a 100644
--- a/test/util/tc_mime_type_utils.rb
+++ b/test/util/tc_mime_type_utils.rb
@@ -1,4 +1,5 @@
-require 'tc_helper.rb'
+require 'tc_helper'
+
 class TestMimeTypeUtils < Test::Unit::TestCase
   def setup
     stub_request(:get, 'https://example.com/sample-image.png')
diff --git a/test/util/tc_serialized_attributes.rb b/test/util/tc_serialized_attributes.rb
index 886bafde..4ba90b29 100644
--- a/test/util/tc_serialized_attributes.rb
+++ b/test/util/tc_serialized_attributes.rb
@@ -1,4 +1,5 @@
-require 'tc_helper.rb'
+require 'tc_helper'
+
 class Funk
   include Axlsx::Accessors
   include Axlsx::SerializedAttributes
diff --git a/test/util/tc_simple_typed_list.rb b/test/util/tc_simple_typed_list.rb
index 651764e1..e1ac6d99 100644
--- a/test/util/tc_simple_typed_list.rb
+++ b/test/util/tc_simple_typed_list.rb
@@ -1,4 +1,5 @@
-require 'tc_helper.rb'
+require 'tc_helper'
+
 class TestSimpleTypedList < Test::Unit::TestCase
   def setup
     @list = Axlsx::SimpleTypedList.new Integer
diff --git a/test/util/tc_validators.rb b/test/util/tc_validators.rb
index 3cbc7692..59e4f559 100644
--- a/test/util/tc_validators.rb
+++ b/test/util/tc_validators.rb
@@ -1,4 +1,5 @@
-require 'tc_helper.rb'
+require 'tc_helper'
+
 class TestValidators < Test::Unit::TestCase
   def setup; end
 
diff --git a/test/workbook/tc_shared_strings_table.rb b/test/workbook/tc_shared_strings_table.rb
index b8843f04..de748ba4 100644
--- a/test/workbook/tc_shared_strings_table.rb
+++ b/test/workbook/tc_shared_strings_table.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestSharedStringsTable < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/tc_workbook.rb b/test/workbook/tc_workbook.rb
index 1e8a35e4..0bd84d2d 100644
--- a/test/workbook/tc_workbook.rb
+++ b/test/workbook/tc_workbook.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestWorkbook < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/auto_filter/tc_auto_filter.rb b/test/workbook/worksheet/auto_filter/tc_auto_filter.rb
index e14591da..ead6c43a 100644
--- a/test/workbook/worksheet/auto_filter/tc_auto_filter.rb
+++ b/test/workbook/worksheet/auto_filter/tc_auto_filter.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestAutoFilter < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/auto_filter/tc_filter_column.rb b/test/workbook/worksheet/auto_filter/tc_filter_column.rb
index bf92bd44..84cb41ca 100644
--- a/test/workbook/worksheet/auto_filter/tc_filter_column.rb
+++ b/test/workbook/worksheet/auto_filter/tc_filter_column.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestFilterColumn < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/auto_filter/tc_filters.rb b/test/workbook/worksheet/auto_filter/tc_filters.rb
index 2002d510..35f17a7b 100644
--- a/test/workbook/worksheet/auto_filter/tc_filters.rb
+++ b/test/workbook/worksheet/auto_filter/tc_filters.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestFilters < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_border_creator.rb b/test/workbook/worksheet/tc_border_creator.rb
index f1418bb4..7dff4f0f 100644
--- a/test/workbook/worksheet/tc_border_creator.rb
+++ b/test/workbook/worksheet/tc_border_creator.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestBorderCreator < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_break.rb b/test/workbook/worksheet/tc_break.rb
index de71f591..638dcd8d 100644
--- a/test/workbook/worksheet/tc_break.rb
+++ b/test/workbook/worksheet/tc_break.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestBreak < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_cell.rb b/test/workbook/worksheet/tc_cell.rb
index 9e1ebb0a..28a074ae 100644
--- a/test/workbook/worksheet/tc_cell.rb
+++ b/test/workbook/worksheet/tc_cell.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestCell < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_cfvo.rb b/test/workbook/worksheet/tc_cfvo.rb
index de3aa5d8..6098add1 100644
--- a/test/workbook/worksheet/tc_cfvo.rb
+++ b/test/workbook/worksheet/tc_cfvo.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestCfvo < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_col.rb b/test/workbook/worksheet/tc_col.rb
index f9108b1a..f4258602 100644
--- a/test/workbook/worksheet/tc_col.rb
+++ b/test/workbook/worksheet/tc_col.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestCol < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_color_scale.rb b/test/workbook/worksheet/tc_color_scale.rb
index a4e5816b..6cba553b 100644
--- a/test/workbook/worksheet/tc_color_scale.rb
+++ b/test/workbook/worksheet/tc_color_scale.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestColorScale < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_comment.rb b/test/workbook/worksheet/tc_comment.rb
index 9ada0b4e..d6fd41d1 100644
--- a/test/workbook/worksheet/tc_comment.rb
+++ b/test/workbook/worksheet/tc_comment.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestComment < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_comments.rb b/test/workbook/worksheet/tc_comments.rb
index 55ba744f..e96a581c 100644
--- a/test/workbook/worksheet/tc_comments.rb
+++ b/test/workbook/worksheet/tc_comments.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestComments < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_conditional_formatting.rb b/test/workbook/worksheet/tc_conditional_formatting.rb
index 1ee26ca0..9eee820b 100644
--- a/test/workbook/worksheet/tc_conditional_formatting.rb
+++ b/test/workbook/worksheet/tc_conditional_formatting.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestConditionalFormatting < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_data_bar.rb b/test/workbook/worksheet/tc_data_bar.rb
index ccb31d40..35cf5c11 100644
--- a/test/workbook/worksheet/tc_data_bar.rb
+++ b/test/workbook/worksheet/tc_data_bar.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestDataBar < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_data_validation.rb b/test/workbook/worksheet/tc_data_validation.rb
index 01a7cd13..90fea502 100644
--- a/test/workbook/worksheet/tc_data_validation.rb
+++ b/test/workbook/worksheet/tc_data_validation.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 require 'support/capture_warnings'
 
 class TestDataValidation < Test::Unit::TestCase
diff --git a/test/workbook/worksheet/tc_date_time_converter.rb b/test/workbook/worksheet/tc_date_time_converter.rb
index a09ff685..ed914441 100644
--- a/test/workbook/worksheet/tc_date_time_converter.rb
+++ b/test/workbook/worksheet/tc_date_time_converter.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestDateTimeConverter < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_icon_set.rb b/test/workbook/worksheet/tc_icon_set.rb
index 3a52cb98..f065c399 100644
--- a/test/workbook/worksheet/tc_icon_set.rb
+++ b/test/workbook/worksheet/tc_icon_set.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestIconSet < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_outline_pr.rb b/test/workbook/worksheet/tc_outline_pr.rb
index c6b086fe..cd806d17 100644
--- a/test/workbook/worksheet/tc_outline_pr.rb
+++ b/test/workbook/worksheet/tc_outline_pr.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestOutlinePr < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_page_margins.rb b/test/workbook/worksheet/tc_page_margins.rb
index 26aa4850..820c65be 100644
--- a/test/workbook/worksheet/tc_page_margins.rb
+++ b/test/workbook/worksheet/tc_page_margins.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPageMargins < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_page_set_up_pr.rb b/test/workbook/worksheet/tc_page_set_up_pr.rb
index f634ba38..ab39f038 100644
--- a/test/workbook/worksheet/tc_page_set_up_pr.rb
+++ b/test/workbook/worksheet/tc_page_set_up_pr.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPageSetUpPr < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_page_setup.rb b/test/workbook/worksheet/tc_page_setup.rb
index 85b0013a..494db40b 100644
--- a/test/workbook/worksheet/tc_page_setup.rb
+++ b/test/workbook/worksheet/tc_page_setup.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPageSetup < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_pane.rb b/test/workbook/worksheet/tc_pane.rb
index 0e0c98fb..8853cba9 100644
--- a/test/workbook/worksheet/tc_pane.rb
+++ b/test/workbook/worksheet/tc_pane.rb
@@ -1,5 +1,5 @@
 $LOAD_PATH.unshift "#{File.dirname(__FILE__)}/../../"
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPane < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_pivot_table.rb b/test/workbook/worksheet/tc_pivot_table.rb
index 91df5597..4fafa04d 100644
--- a/test/workbook/worksheet/tc_pivot_table.rb
+++ b/test/workbook/worksheet/tc_pivot_table.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 def shared_test_pivot_table_xml_validity(pivot_table)
   schema = Nokogiri::XML::Schema(File.open(Axlsx::SML_XSD))
diff --git a/test/workbook/worksheet/tc_pivot_table_cache_definition.rb b/test/workbook/worksheet/tc_pivot_table_cache_definition.rb
index b3a4484d..f629940f 100644
--- a/test/workbook/worksheet/tc_pivot_table_cache_definition.rb
+++ b/test/workbook/worksheet/tc_pivot_table_cache_definition.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPivotTableCacheDefinition < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_print_options.rb b/test/workbook/worksheet/tc_print_options.rb
index 40812b3e..e568d739 100644
--- a/test/workbook/worksheet/tc_print_options.rb
+++ b/test/workbook/worksheet/tc_print_options.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestPrintOptions < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_protected_range.rb b/test/workbook/worksheet/tc_protected_range.rb
index db1ab93a..1f39ec12 100644
--- a/test/workbook/worksheet/tc_protected_range.rb
+++ b/test/workbook/worksheet/tc_protected_range.rb
@@ -1,4 +1,5 @@
-require 'tc_helper.rb'
+require 'tc_helper'
+
 class TestProtectedRange < Test::Unit::TestCase
   def setup
     @p = Axlsx::Package.new
diff --git a/test/workbook/worksheet/tc_rich_text.rb b/test/workbook/worksheet/tc_rich_text.rb
index 6ed8e5f0..77d74ab6 100644
--- a/test/workbook/worksheet/tc_rich_text.rb
+++ b/test/workbook/worksheet/tc_rich_text.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class RichText < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_rich_text_run.rb b/test/workbook/worksheet/tc_rich_text_run.rb
index 61c462f0..ef2a520c 100644
--- a/test/workbook/worksheet/tc_rich_text_run.rb
+++ b/test/workbook/worksheet/tc_rich_text_run.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class RichTextRun < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_row.rb b/test/workbook/worksheet/tc_row.rb
index 0d1c724d..cd805315 100644
--- a/test/workbook/worksheet/tc_row.rb
+++ b/test/workbook/worksheet/tc_row.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestRow < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_selection.rb b/test/workbook/worksheet/tc_selection.rb
index 97419a64..d2edc669 100644
--- a/test/workbook/worksheet/tc_selection.rb
+++ b/test/workbook/worksheet/tc_selection.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestSelection < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_sheet_format_pr.rb b/test/workbook/worksheet/tc_sheet_format_pr.rb
index 6a8141c4..5de2fc53 100644
--- a/test/workbook/worksheet/tc_sheet_format_pr.rb
+++ b/test/workbook/worksheet/tc_sheet_format_pr.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestSheetFormatPr < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_sheet_pr.rb b/test/workbook/worksheet/tc_sheet_pr.rb
index 819b265a..7bff60b7 100644
--- a/test/workbook/worksheet/tc_sheet_pr.rb
+++ b/test/workbook/worksheet/tc_sheet_pr.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestSheetPr < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_sheet_protection.rb b/test/workbook/worksheet/tc_sheet_protection.rb
index 1586afd5..3305b044 100644
--- a/test/workbook/worksheet/tc_sheet_protection.rb
+++ b/test/workbook/worksheet/tc_sheet_protection.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 # <xsd:complexType name="CT_SheetProtection">
 # <xsd:attribute name="sheet" type="xsd:boolean" use="optional" default=0/>
diff --git a/test/workbook/worksheet/tc_sheet_view.rb b/test/workbook/worksheet/tc_sheet_view.rb
index 3d5b7f26..586a32f9 100644
--- a/test/workbook/worksheet/tc_sheet_view.rb
+++ b/test/workbook/worksheet/tc_sheet_view.rb
@@ -1,5 +1,5 @@
 $LOAD_PATH.unshift "#{File.dirname(__FILE__)}/../../"
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestSheetView < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_table.rb b/test/workbook/worksheet/tc_table.rb
index 0ea0166f..2a3a56db 100644
--- a/test/workbook/worksheet/tc_table.rb
+++ b/test/workbook/worksheet/tc_table.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestTable < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_table_style_info.rb b/test/workbook/worksheet/tc_table_style_info.rb
index 794073ef..1da1068d 100644
--- a/test/workbook/worksheet/tc_table_style_info.rb
+++ b/test/workbook/worksheet/tc_table_style_info.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestTableStyleInfo < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_worksheet.rb b/test/workbook/worksheet/tc_worksheet.rb
index 103d1641..fc671a59 100644
--- a/test/workbook/worksheet/tc_worksheet.rb
+++ b/test/workbook/worksheet/tc_worksheet.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestWorksheet < Test::Unit::TestCase
   def setup
diff --git a/test/workbook/worksheet/tc_worksheet_hyperlink.rb b/test/workbook/worksheet/tc_worksheet_hyperlink.rb
index 29e302a0..82f6689b 100644
--- a/test/workbook/worksheet/tc_worksheet_hyperlink.rb
+++ b/test/workbook/worksheet/tc_worksheet_hyperlink.rb
@@ -1,4 +1,4 @@
-require 'tc_helper.rb'
+require 'tc_helper'
 
 class TestWorksheetHyperlink < Test::Unit::TestCase
   def setup