- Improve compatibility for absolute path drawing part
- Fix incorrect table ID generated in the workbook which contains single table cells
- Fix missing relationship parts in the content types in some cases
- Upgrade number format parser to fix missing literal tokens in some cases
- Update built-in zh-cn and zh-tw language number format
- Ref #65, init new formula function: TEXT
- Remove duplicate style-related variables
- Update the unit tests
- Fix a v2.8.0 regression bug, number format code apply result was empty
- Fix calculate formula functions CHITEST and MMULT panic in some cases
- Updated unit tests
- Support apply date and time number format with 16 languages: Persian, Polish, Portuguese, Punjabi, Quechua, Romanian, Romansh, Sakha, Sami, Sanskrit, Scottish Gaelic, Serbian, Sesotho sa Leboa, Setswana, Sindhi, Sinhala and Slovak
- Update the unit test and dependencies modules
- Simplify and remove duplicate code for optimization
- Update documentation comments with typo fix
- Handle error return to save the workbook
- Add file path length limitation details in the error message
- Remove the `Lang` field in the `Style` data type
- Rename field name `ShortDateFmtCode` to `ShortDatePattern` in the `Options` data type
- Rename field name `LongDateFmtCode` to `LongDatePattern` in the `Options` data type
- Rename field name `LongTimeFmtCode` to `LongTimePattern` in the `Options` data type
- Apply built-in language number format code number when creating a new style
- Checking and returning error if the date and time pattern was invalid
- Add new `Options` field `CultureInfo` and new exported data type `CultureName`
- Add new culture name types enumeration for country code
- Update unit tests
- Move built-in number format code and currency number format code definition source code
- Remove the built-in language number format code mapping with Unicode values
- Fix incorrect number formatted result for date and time with 12 hours at AM
- Simplify variable declaration and error return statements
- Remove the internal `xlsxTabColor` data type
- Using the `xlsxColor` data type instead of `xlsxTabColor`
- Update unit test, improve code coverage