.SFS File Extension
Kerbal Space Program Save File
| Developer | Squad |
| Popularity |
3.8 | 29 Votes |
What is an SFS file?
An SFS file is a saved game created by Kerbal Space Program, a video game in which players build and launch rockets. It contains plain text written in a JSON-like key-value format. Kerbal Space Program's primary SFS file is named persistent.sfs.
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Squad Kerbal Space Program is a popular rocket construction and space flight simulation game. It is available for many platforms, including Windows, macOS, and Linux.
The game stores a player's current game state, including all their in-progress flights, in a file named persistent.sfs. This file is a plain text file, which Kerbal Space Program modders can open and edit to make changes to their in-progress games. For example, a player can edit persistent.sfs to give themself more money.
Kerbal Space Program also allows players to create "quicksaves" of their game to revert back to previous game states. For example, a player might want to revert to a previous state if one of their rockets crashes. These quicksaves are named quicksave.sfs.
Common SFS Filenames
persistent.sfs - Stores a player's saved game; can be loaded by selecting Resume Saved.
quicksave.sfs - A quicksave used to revert to a previous game state.
How to open an SFS file
You can open and edit an SFS file in Microsoft Notepad (Windows), Apple TextEdit (Mac), or any other text editor. You can also open and edit an SFS file in SFSEd (Windows), a program used to view and edit Kerbal Space Program save files.
To use an SFS file with Kerbal Space Program (multiplatform), place the file in your installation's saves directory. For example, you should place persistent.sfs files in the ~/saves/default directory.
Programs that open SFS files
Squashfs File Archive
| Developer | N/A |
| Popularity |
3.7 | 24 Votes |
Read-only archive format developed for Linux-based operating systems; often used for creating installer archives and software distributions; typically compressed using .GZIP compression.
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SFS files are also used for installing updates on Navigon-based GPS devices.
NOTE: Some users have reported that 7-zip is unable to extract SFS files. If you're having trouble, uninstall 7-zip and install 7-zip 9.25 alpha. This version will open SFS files.
Programs that open SFS files
SFX Sample File
| Developer | sfxr |
| Popularity |
2.1 | 9 Votes |
File created by sfxr, a program used to make sound effects; stores sound settings such as the attack time, sustain time, frequencies, cutoffs, and filters; can be used for making video game sound effects.