- Refactored @:enum abstract to enum abstract
- Dropped Haxe 3 support
- Added Xls and Xlsx readers for spreadsheet
- Added BaseWriter for spreadsheet
- Added Dimension base class
- Added PageMargins to worksheet
- Added PageSetup to worksheet
- Added Drawing to worksheet
- Added NumberFormat to spreadsheet style
- Added sample code to README
- Added ColumnName helper abstract
- initial release