What is the SSFN file?
The SSFN file extension can be associated with several types of files. Most often, however, a file with such an extension is associated with the Steam Guard Data Format format. SSFN files are supported by Linux, Mac OS, Windows operating systems. The SSFN file is one of the Misc Files files, just like 6033 of the other files found in our file information database.
A program that can open the SSFN file is e.g. Steam. This software was released by Valve Corporation.
Programs, that can open .SSFN files
How to open a .SSFN file?
If you have problems opening the file SSFN, then in most cases the problem is only the lack of the proper application installed. Select one of the programs from the list and install it on your device. The operating system should automatically associate the SSFN file format with the installed program. If not, right click on your SSFN file and select from the menu "Open with" . Then select the installed program and confirm the operation. Now all SSFN files should automatically open with the selected program.