Revision history for Excel-ValueWriter-XLSX

0.4      01.08.2022
  - save_as() can also take a filehandle instead of a filename

0.3      31.07.2022
  - support for formulas

0.2      15.01.2022
  - fix UTF8 support
  - new optional parameter: $headers
  

0.1      14.01.2022
  - initial release
