Hi @Casha
It is recommended that you back up these documents first, and then try the following steps:
Are you using Mac? I suggest you use "Open and Repair" function on Windows for a check.
- Please open Word first, then click File > Open > Browse. Choose the damaged file, click the small triangle arrow icon > Choose Open and Repair.
If it does not work, you may change the document extension, such as .rtf or .html. Then open it and see if you can find the text content inside.
Besides, try to open them with other word processing programs, such as Word online, Pages. Here is a thread about using Pages you may have a look: https://discussions.apple.com/thread/255627097
Hope the information could be helpful.
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