SFS File Extension

SFS file extension is created by Squad, also known as Kerbal Space Program Save File. SFS has been classified as Game Files. The format of this file type has not been determined yet. You can open SFS files in Squad Kerbal Space Program program.

Kerbal Space Program Save File Type

Kerbal Space Program Save File Type

Extension	.sfs
Developer	Squad
Popularity	Very Common Common Average Uncommon Rare 5.0 (68 Votes) Thank you for voting!Already voted, thanks!
Mime Type	text/x-asm
Default Program	Squad Kerbal Space Program
Category	Game Files
Format	Not Available
Updated	6/1/2025

What is a SFS File Type?

Kerbal Space Program allows users to create quicksaves, quicksaves ", games and return to the previous states of the game in case of a crash. When the game creates the quicksave it stores the contents in the .sfs file of quicksave.

What is a Default SFS File Name?

Persistent.sfs - The file in the saved game folder that stores the status of the game and allows to resume the game from "Resume the saved file; dialog.

Free online SFS Tools & Apps

We have also the free online .SFS (Kerbal Space Program Save File) file extension apps that can allow to view, edit, convert from to SFS, merge, split and compare the SFS files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.

SFS Files Common Issues

There are few common issues with the Kerbal Space Program Save File .SFS File Extensions while opening the .SFS files on Windows and MacOs, we have solution to those issues such as:

Can't Open SFS Files?

1. You must have supported software programs installed for Kerbal Space Program Save File on your system such as Squad Kerbal Space Program.
2. Associate default Squad Kerbal Space Program Squad Kerbal Space Program program for *.sfs (Kerbal Space Program Save File) files.
   
   

   Associate SFS Default Program on Windows

   1. Right-click a *.SFS (e.g example.sfs) file and click Open With.
   2. In the Open with dialog box, click Squad Kerbal Space Program Squad Kerbal Space Program program Or click Browse to locate the program (*.exe) that you want.
   3. Select check box for Always use this app to open .sfs files.
   
   

   Associate SFS Default Program on MacOs

   1. Click *.SFS (e.g example.sfs) file and click information -> Open With.
   2. In the programs list, click Squad Kerbal Space Program Squad Kerbal Space Program program Or other appropriate program that you want.
   3. Confirm Change for all... and Contine.
   4. A message will appear "This change will be applied to all files with .Squad Kerbal Space Program extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related SFS File Extensions

SFS default file extension is .SFS and other similer related extensions are:

All Platform Software Programs for SFS File Extension

List of all softwares that can open the SFS files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Open SFS File on Windows

	Software	License	Developer
	Microsoft App-V Sequencer 000 for Windows	Paid	Microsoft
	Igor Pavlov 7-Zip 16 for Windows	Open Source	7-Zip
	Squad Kerbal Space Program 000 for Windows	Paid	Squad Kerbal Space Program

Open SFS File on Mac OS

	Software	License	Developer
	Squad Kerbal Space Program 000 for MacOs	Paid	Squad Kerbal Space Program

Open SFS file on Linux

	Software	License	Developer

Open SFS file on Web

	Software	License	Developer

Open SFS file on iOS

	Software	License	Developer

Open SFS file on Android

	Software	License	Developer

About Licensing

1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
3. Free⁺ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

About SFS - Kerbal Space Program Save File

Updated 6/1/2025

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