- update FilterDatabase defined name when writing AutoFilter
- XLML stub cells have blank Data block
- HTML export honor `id` option
- expose `sheet_get_cell`
- missing formula elements rewritten to valid defined names (see #680)
- comment author length limit enforced
- XLS ifmt references renamed to numFmtId for consistency with XLSB
- removed circular symlink
- mangle/compress with uglify
- more flow comments
- added more function argc counts and cleaned up error rendering
- disabled XLS error on MTRSettings (fixes#466 h/t @dskrvk)
- handle more unexpected XML empty tags (fixes#510 h/t @rahulsindc)
- throw error if SheetNames is not unique (fixes#231 h/t @zippy1981)
- BIFF 2-12 formula parsing
- more content type coverage
- unified `.f` form: A1-style string
- `.F` field for array formulae
- formula output groups array formulae
- bin script -A --arrays output JS row objects
- whitespace robustness in inline string xml
- UTF-8 parsing in rich text runs (fixes#505 h/t @fuchsc)
- bold/italic/underline accept null val attr (h/t @qqilihq)
- sst trimming (fixes#176 h/t @shakhal @oising)