What's the file extension?

The files that are sent to schools are non-delimited flat files with a 3-digit sequence number as the file extension. (.001-.365) The school is then required to decrypt the file changing the extension to .pgp.  This will be recognized by the software. You select “Decrypt” or “Decrypt and Verify”, enter your password and the file will decrypt. The three-digit file extension will reset to .001 every January 1.