What's Changed
* Feature&Refactor: add sheet existence validation function and some minor adjust by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/25
* refactor: remove and adjust header writing in fast writer by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/26
* Refactor: remove col_idx in row_append's input by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/27
* Feature: worksheet index access by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/28
* Feature: add cell fucntion to set value and style by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/29
* Feature: expand row and col for index assignment by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/30
* Refactor: refactor sheet operation by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/31
* Refactor&Feat: style validation and row_append rework by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/32
* docs: update readme by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/33
* refactor: rename writer to workbook, and make workbook able to use wi… by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/35
* Feat: save function for workbook by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/36
* refactor: abstracted functionality in __setitem__ and __getitem__ by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/37
* Feat: add row retrieve and assingment method by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/38
* Refactor: refactor set cell by slice and get cell by slice by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/39
* perf: re-implement the expand_row_and_cols to enhance the performance by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/41
* Refactor: worksheet validate by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/42
* refactor: move merge cell and set cell height and weight to worksheet by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/43
* docs: update readme with the new features by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/44
* Build: bump version to v0.0.6 by Zncl2222 in https://github.com/Zncl2222/pyfastexcel/pull/45
**Full Changelog**: https://github.com/Zncl2222/pyfastexcel/compare/v0.0.5...v0.0.6