Per my knowledge, there is a character limit on creating and saving files in Office products. This issue occurs if the path of the file that you open or save meets the following condition:
- Microsoft Word, Microsoft PowerPoint, and Microsoft Access: The total length of the path and the file name, including file name extension, exceeds 259 characters.
- Microsoft Excel: The total length of the path and the file name, including file name extension, exceeds 218 characters.
I'm afraid that the limitation cannot be changed now. Really sorry for the inconvenience caused by it.
Until now, the best workaround is to reduce the character count.
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