A family of Microsoft word processing software products for creating web, email, and print documents.
Yes. After recovery, I do save it with a new file name. When I try to open the new file, it gives the same error.
By renaming thesis.docx to thesis.docx.zip I could extract the webSettings.xml file. Its contents do look highly suspicious (although balanced) in terms of how deeply the nesting structure is. I don't know how to attach any files here (copying the contents removes all whitespace), so I have sent you this file via email.