v4.0.0

• Breaking changes

  • #325 Drop support for ACF2016
  • #359 Library should default to returning cached cell formula values instead of always recalculating

• Enhancements

  • #358 Allow control of whether to return cached or freshly calculated formula values
  • #354 Add getCellAddress() to return a cell's alphanumeric reference
  • #364 Support integer range validation
  • #356 Support date range validation
  • #363 Add option to allow New() to default to creating an XLSX (XML) spreadsheet object