* extend cell value load to support custom datetime format
* cleanup incorrect imports
* fix numeric values conversion as done in legacy Excel
* fix tests coverage
* revert temporary package name fix
* remove personal info from test XLSX files
* remove unused dependencies
* update format conversion in parseTime
* new UT to increase code coverage
* Resolve code review issue for PR #703
* Rename broken file name generated by unit test
Co-authored-by: xuri <xuri.me@gmail.com>
Artem Kustikov