diff --git a/examples/anatomy.c b/examples/anatomy.c
index 23e3c254..763c8607 100644
--- a/examples/anatomy.c
+++ b/examples/anatomy.c
@@ -1,7 +1,7 @@
 /*
  * Anatomy of a simple libxlsxwriter program.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/array_formula.c b/examples/array_formula.c
index 2ecf37bd..aba4ec92 100644
--- a/examples/array_formula.c
+++ b/examples/array_formula.c
@@ -2,7 +2,7 @@
  * Example of how to use the libxlsxwriter library to write simple
  * array formulas.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/autofilter.c b/examples/autofilter.c
index d493989b..a6d5d4e9 100644
--- a/examples/autofilter.c
+++ b/examples/autofilter.c
@@ -2,7 +2,7 @@
  * Example of adding an autofilter to a worksheet in Excel using
  * libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart.c b/examples/chart.c
index 49c79254..db7b3f12 100644
--- a/examples/chart.c
+++ b/examples/chart.c
@@ -1,7 +1,7 @@
 /*
  * An example of a simple Excel chart using the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_area.c b/examples/chart_area.c
index f0e5dd91..677e6d44 100644
--- a/examples/chart_area.c
+++ b/examples/chart_area.c
@@ -1,7 +1,7 @@
 /*
  * An example of creating Excel area charts using the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_bar.c b/examples/chart_bar.c
index b184260c..ef462b77 100644
--- a/examples/chart_bar.c
+++ b/examples/chart_bar.c
@@ -1,7 +1,7 @@
 /*
  * An example of creating Excel bar charts using the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_clustered.c b/examples/chart_clustered.c
index 5199b2f8..c3328172 100644
--- a/examples/chart_clustered.c
+++ b/examples/chart_clustered.c
@@ -1,7 +1,7 @@
 /*
  * An example of a clustered category chart using the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_column.c b/examples/chart_column.c
index 18b80036..5c0f4bde 100644
--- a/examples/chart_column.c
+++ b/examples/chart_column.c
@@ -1,7 +1,7 @@
 /*
  * An example of creating Excel column charts using the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_data_table.c b/examples/chart_data_table.c
index 72ebc7ba..7fb2265e 100644
--- a/examples/chart_data_table.c
+++ b/examples/chart_data_table.c
@@ -2,7 +2,7 @@
  * An example of creating Excel column charts with data tables using the
  * libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_data_tools.c b/examples/chart_data_tools.c
index 547e732f..a590928b 100644
--- a/examples/chart_data_tools.c
+++ b/examples/chart_data_tools.c
@@ -4,7 +4,7 @@
  *
  * These include Drop Lines and High-Low Lines.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_doughnut.c b/examples/chart_doughnut.c
index 8dd49cef..ed572b64 100644
--- a/examples/chart_doughnut.c
+++ b/examples/chart_doughnut.c
@@ -7,7 +7,7 @@
  * each segment is represented as a point so it is necessary to assign
  * formatting to each point in the series.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_fonts.c b/examples/chart_fonts.c
index 475e6514..494dc8d4 100644
--- a/examples/chart_fonts.c
+++ b/examples/chart_fonts.c
@@ -2,7 +2,7 @@
  * An example of a simple Excel chart with user defined fonts using the
  * libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_line.c b/examples/chart_line.c
index 08bb6bbe..7fed4ebd 100644
--- a/examples/chart_line.c
+++ b/examples/chart_line.c
@@ -1,7 +1,7 @@
 /*
  * An example of creating an Excel line chart using the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_pattern.c b/examples/chart_pattern.c
index c1548357..8ecc5618 100644
--- a/examples/chart_pattern.c
+++ b/examples/chart_pattern.c
@@ -2,7 +2,7 @@
  * An example of a simple Excel chart with patterns using the libxlsxwriter
  * library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_pie.c b/examples/chart_pie.c
index 59a6c4b7..0ec67140 100644
--- a/examples/chart_pie.c
+++ b/examples/chart_pie.c
@@ -7,7 +7,7 @@
  * each segment is represented as a point so it is necessary to assign
  * formatting to each point in the series.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_pie_colors.c b/examples/chart_pie_colors.c
index 9597d357..a0ff243e 100644
--- a/examples/chart_pie_colors.c
+++ b/examples/chart_pie_colors.c
@@ -7,7 +7,7 @@
  * particular this is required for Pie/Doughnut charts where each segment is
  * represented by a point.
 
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_radar.c b/examples/chart_radar.c
index 08dc9375..583c4795 100644
--- a/examples/chart_radar.c
+++ b/examples/chart_radar.c
@@ -1,7 +1,7 @@
 /*
  * An example of creating Excel radar charts using the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_scatter.c b/examples/chart_scatter.c
index bb48fd26..4ca0912a 100644
--- a/examples/chart_scatter.c
+++ b/examples/chart_scatter.c
@@ -1,7 +1,7 @@
 /*
  * An example of creating Excel scatter charts using the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_styles.c b/examples/chart_styles.c
index 8d78de97..d994e670 100644
--- a/examples/chart_styles.c
+++ b/examples/chart_styles.c
@@ -3,7 +3,7 @@
  * using the libxlsxwriter library. Note, these styles are not the same as the
  * styles available in Excel 2013.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/chart_working_with_example.c b/examples/chart_working_with_example.c
index 988eb7f0..430672ee 100644
--- a/examples/chart_working_with_example.c
+++ b/examples/chart_working_with_example.c
@@ -2,7 +2,7 @@
  * An example of a simple Excel chart using the libxlsxwriter library. This
  * example is used in the "Working with Charts" section of the docs.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/constant_memory.c b/examples/constant_memory.c
index a4ba17cb..e628c2d1 100644
--- a/examples/constant_memory.c
+++ b/examples/constant_memory.c
@@ -2,7 +2,7 @@
  * Example of using libxlsxwriter for writing large files in constant memory
  * mode.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/data_validate.c b/examples/data_validate.c
index 1f4cb71d..df44c32e 100644
--- a/examples/data_validate.c
+++ b/examples/data_validate.c
@@ -6,7 +6,7 @@
  * that a user enters in a cell and to display help and warning messages. It
  * also allows you to restrict input to values in a drop down list.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  */
 
 
diff --git a/examples/dates_and_times01.c b/examples/dates_and_times01.c
index 7e152bf7..821752d8 100644
--- a/examples/dates_and_times01.c
+++ b/examples/dates_and_times01.c
@@ -6,7 +6,7 @@
  * An easier approach using a lxw_datetime struct is shown in example
  * dates_and_times02.c.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/dates_and_times02.c b/examples/dates_and_times02.c
index 8b0cf63a..2c17a4e1 100644
--- a/examples/dates_and_times02.c
+++ b/examples/dates_and_times02.c
@@ -2,7 +2,7 @@
  * Example of writing dates and times in Excel using an lxw_datetime struct
  * and date formatting.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/dates_and_times03.c b/examples/dates_and_times03.c
index 5ef4720c..a8d98bef 100644
--- a/examples/dates_and_times03.c
+++ b/examples/dates_and_times03.c
@@ -1,7 +1,7 @@
 /*
  * Example of writing dates and times in Excel using different date formats.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/defined_name.c b/examples/defined_name.c
index a194d170..8b0afd01 100644
--- a/examples/defined_name.c
+++ b/examples/defined_name.c
@@ -3,7 +3,7 @@
  * used to define a user friendly name to represent a value, a single cell or
  * a range of cells in a workbook.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/demo.c b/examples/demo.c
index d449ea6a..0c1e0f43 100644
--- a/examples/demo.c
+++ b/examples/demo.c
@@ -1,7 +1,7 @@
 /*
  * A simple example of some of the features of the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/doc_custom_properties.c b/examples/doc_custom_properties.c
index b8ff31d2..5f3ffc98 100644
--- a/examples/doc_custom_properties.c
+++ b/examples/doc_custom_properties.c
@@ -2,7 +2,7 @@
  * Example of setting custom document properties for an Excel spreadsheet
  * using libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/doc_properties.c b/examples/doc_properties.c
index e79b7dc6..48de1a5f 100644
--- a/examples/doc_properties.c
+++ b/examples/doc_properties.c
@@ -2,7 +2,7 @@
  * Example of setting document properties such as Author, Title, etc., for an
  * Excel spreadsheet using libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/format_font.c b/examples/format_font.c
index aad37623..aaabe6ce 100644
--- a/examples/format_font.c
+++ b/examples/format_font.c
@@ -2,7 +2,7 @@
  * Example of writing some data with font formatting to a simple Excel
  * file using libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/format_num_format.c b/examples/format_num_format.c
index 5cb09c96..64e76466 100644
--- a/examples/format_num_format.c
+++ b/examples/format_num_format.c
@@ -2,7 +2,7 @@
  * Example of writing some data with numeric formatting to a simple Excel file
  * using libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/headers_footers.c b/examples/headers_footers.c
index 4698b1f0..768888e3 100644
--- a/examples/headers_footers.c
+++ b/examples/headers_footers.c
@@ -26,7 +26,7 @@
  *     &G                                      Same as &[Picture]
  *     &&                  Miscellaneous       Literal ampersand &
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/hello.c b/examples/hello.c
index a7b9b524..642e083e 100644
--- a/examples/hello.c
+++ b/examples/hello.c
@@ -1,7 +1,7 @@
 /*
  * Example of writing some data to a simple Excel file using libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/hide_row_col.c b/examples/hide_row_col.c
index 70084e55..7f8de105 100644
--- a/examples/hide_row_col.c
+++ b/examples/hide_row_col.c
@@ -7,7 +7,7 @@
  * Libxlsxwriter we replicate that using the worksheet_set_default_row()
  * function.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/hide_sheet.c b/examples/hide_sheet.c
index d5aedf72..c911f310 100644
--- a/examples/hide_sheet.c
+++ b/examples/hide_sheet.c
@@ -1,7 +1,7 @@
 /*
  * Example of how to hide a worksheet using libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/hyperlinks.c b/examples/hyperlinks.c
index 8061e52a..99ecfba3 100644
--- a/examples/hyperlinks.c
+++ b/examples/hyperlinks.c
@@ -1,7 +1,7 @@
 /*
  * Example of writing urls/hyperlinks with the libxlsxwriter library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/images.c b/examples/images.c
index 777feccf..465df969 100644
--- a/examples/images.c
+++ b/examples/images.c
@@ -2,7 +2,7 @@
  * An example of inserting images into a worksheet using the libxlsxwriter
  * library.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/merge_range.c b/examples/merge_range.c
index 66ab295a..fb080dd8 100644
--- a/examples/merge_range.c
+++ b/examples/merge_range.c
@@ -1,7 +1,7 @@
 /*
  * An example of merging cells using libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/panes.c b/examples/panes.c
index 53df6695..c7ced309 100644
--- a/examples/panes.c
+++ b/examples/panes.c
@@ -2,7 +2,7 @@
  * A simple example using the libxlsxwriter library to create worksheets with
  * panes.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/tab_colors.c b/examples/tab_colors.c
index 9b101d3d..8c3ba6a9 100644
--- a/examples/tab_colors.c
+++ b/examples/tab_colors.c
@@ -1,7 +1,7 @@
 /*
  * Example of how to set Excel worksheet tab colors using libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/tutorial1.c b/examples/tutorial1.c
index 567f7e41..d7c3742f 100644
--- a/examples/tutorial1.c
+++ b/examples/tutorial1.c
@@ -5,7 +5,7 @@
  * This program is shown, with explanations, in Tutorial 1 of the
  * libxlsxwriter documentation.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/tutorial2.c b/examples/tutorial2.c
index 40205372..9c0e1889 100644
--- a/examples/tutorial2.c
+++ b/examples/tutorial2.c
@@ -5,7 +5,7 @@
  * This program is shown, with explanations, in Tutorial 2 of the
  * libxlsxwriter documentation.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/tutorial3.c b/examples/tutorial3.c
index 8586d383..3911054c 100644
--- a/examples/tutorial3.c
+++ b/examples/tutorial3.c
@@ -5,7 +5,7 @@
  * This program is shown, with explanations, in Tutorial 3 of the
  * libxlsxwriter documentation.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/utf8.c b/examples/utf8.c
index 2c4457fb..8ad20a64 100644
--- a/examples/utf8.c
+++ b/examples/utf8.c
@@ -3,7 +3,7 @@
  *
  * Note: The source file must be UTF-8 encoded.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */
 
diff --git a/examples/worksheet_protection.c b/examples/worksheet_protection.c
index ff9daaf4..28ff802c 100644
--- a/examples/worksheet_protection.c
+++ b/examples/worksheet_protection.c
@@ -2,7 +2,7 @@
  * Example of cell locking and formula hiding in an Excel worksheet using
  * libxlsxwriter.
  *
- * Copyright 2014-2017, John McNamara, jmcnamara@cpan.org
+ * Copyright 2014-2018, John McNamara, jmcnamara@cpan.org
  *
  */