- Change the argument from readonly to writable in the processOpen function.
- Adjust the Open function call to reflect the new writable parameter for improved clarity in file handling.
- Introduce new process handlers for reading and writing rows and columns in Excel files.
- Update existing methods to utilize absolute paths for file operations, ensuring consistency.
- Add comprehensive tests for new row and column functionalities, including iterators for both.
- Implement rich text and comment handling, along with row height and column width adjustments.