If Word cannot complete the save due to a file permission error, here are the solutions that have helped many fix the issue properly.

Microsoft Office 2004 11.2.1 (#7): More on "Network or file permission error" -- potential fixes ...

"Mac OS X 10.4.3 does not fix the problem, neither does Office 11.2.1, even though my research shows that both Apple and Microsoft are aware of the problem.

Repair Damaged MS Word File to Fix Word Document Errors Let's know what this article discusses about, Repair damaged Word Document use Word Pad, inbuilt utility or Online Word Repair Tool.

I. Open Word File with text recovery converter on Word (2013/2016) Very few people use MS Word versions older than 2013, so we’ll start with MS Office Word 2013.

An error in Microsoft Word let hackers have access to files for month before the tech giant eventually fixed the problem -- six months later.