The name of any GnuPG (Gnu Privacy Guard) encrypted files themselves are not important however the file extension must follow a strict format.
Any GnuPG encrypted file must include the correct filetype extension (e.g. .txt, .csv, .xml) and then be followed by .gpg.
This naming convention means that Feefo will know what format the file is after it has been decrypted. Failure to include the base file extension will cause the file to sit on our servers unprocessed once it has been decrypted.