ENH: Add check for character limmit
- [x] closes #56954  (Replace xxxx with the GitHub issue number)
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ] Added [type annotations](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#type-hints) to new arguments/methods/functions.
- [ ] Added an entry in the latest `doc/source/whatsnew/vX.X.X.rst` file if fixing a bug or adding a new feature.

As discussed in the context of https://github.com/pandas-dev/pandas/issues/56954#issuecomment-1911937560, we have incorporated a validation for the maximum row/column number within the code. https://github.com/pandas-dev/pandas/blob/9008ee5810c09bc907b5fdc36fc3c1dff4a50c55/pandas/io/formats/excel.py#L929-L934

Furthermore, I have introduced a character limit check and included corresponding notifications in the documentation. The CI test failure appears to be linked to the changes made in the pull request, but I'm unable to reproduce it on my local machine (WSL2). Assistance may be needed. > The CI test failure appears to be linked to the changes made in the pull request

Caused by warnings from other packages, and should be resolved by incorporating  `raise_on_extra_warnings=False`

 Thanks @luke396!