The cause of the destruction of these files can vary, either because of power failure thatcauses the computer suddenly died while editing the document that has not been saved,could also be due to a virus, or other causes.
For that please try software utilities / tools below to fix a damaged Office document files.May not fully fix all of the contents or the contents of those documents, but most are notexpected to save important data, especially text, from the need to regenerate the entirecontents of the document from scratch again.
1. Corrupt Office2txt
Corrupt Office2txt is free software portable (no installation needed) to repair variousoffice files such as file format doc, docx, xls, xlsx, ppt, pptx, odt, ods, and odp. Its use is easy enough to open a file that will be corrected, then if successful, the file can besaved.
Download Corrupt Office2txt download here.*
2. Repair MyWord
Portable software called Repair My Word is also called WordRepair similar function,namely to improve office files, especially MS Word file that is formatted files. doc.
Download Repair My Word download Here*
Hopefully useful.
Mind blowing effort, In case you need any online converter for files then use this;
Simple File Converter