Notes about the TSIG file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The TSIG file type is primarily associated with 'Top Secret Crypto Gold' by TAN$TAAFL Software Company. Top Secret Crypto Gold is a communications and file encryption program for Windows. It makes it easy for you to chat, keep journals, and write, send, and receive encrypted E-mail and files over the Internet. The detached signature file can be used to verify the integrity of a file and who it was signed by.