fyi.cov

Fax cover page

A .cov file contains a cover page for the Windows fax service. The file stores the page layout with fields, for example sender, recipient, and date. The Fax Cover Page Editor, fxscover.exe, creates and changes these files. Windows ships standard cover pages such as generic.cov and urgent.cov. The fax service merges the cover page with the document at send time.

A file extension is only a part of the file name. It does not give a guarantee about the format or the content of a file. But on Windows, the extension selects the program that opens the file.