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FOS File Extension

FOS file extension is created by Bethesda Softworks, also known as Fallout 3 Saved Game. FOS has been classified as Game Files. This File type categories under Zip, Text, Binary and XML, however, the format of this file format has not been determined yet. You can open FOS files in Bethesda Softworks Fallout 3 program.



Fallout 3 Saved Game File Type

Fallout 3 Saved Game File Type
Extension .fos
Developer Bethesda Softworks
Popularity 4.0 (66 Votes)
Mime Type mime-type/not.available
Default Program Bethesda Softworks Fallout 3
Category Game Files
Format Binary
Updated 12/1/2024

What is a FOS File Type?



Free online FOS Tools & Apps

We have also the free online .FOS (Fallout 3 Saved Game) file extension apps that can allow to view, edit, convert from to FOS, merge, split and compare the FOS files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.



FOS Files Common Issues

There are few common issues with the Fallout 3 Saved Game .FOS File Extensions while opening the .FOS files on Windows and MacOs, we have solution to those issues such as:

Can't Open FOS Files?

  1. You must have supported software programs installed for Fallout 3 Saved Game on your system such as Bethesda Softworks Fallout 3.
  2. Associate default Bethesda Softworks Fallout 3 Bethesda Softworks Fallout 3 program for *.fos (Fallout 3 Saved Game) files.

    Associate FOS Default Program on Windows
    1. Right-click a *.FOS (e.g example.fos) file and click Open With.
    2. In the Open with dialog box, click Bethesda Softworks Fallout 3 Bethesda Softworks Fallout 3 program Or click Browse to locate the program (*.exe) that you want.
    3. Select check box for Always use this app to open .fos files.

Related FOS File Extensions

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



All Platform Software Programs for FOS File Extension

List of all softwares that can open the FOS 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.

Microsoft Windows logo image Open FOS File on Windows

Software License Developer
Bethesda Softworks Fallout 3 image. Bethesda Softworks Fallout 3 000 for Windows Paid Bethesda Softworks Fallout 3

MacOs logo image - FileProInfo.comOpen FOS File on Mac OS

Software License Developer

Linux logo image - FileProInfo.comOpen FOS file on Linux

Software License Developer

Website logo image - FileProInfo.comOpen FOS file on Web

Software License Developer

iOS logo image - FileProInfo.comOpen FOS file on iOS

Software License Developer

Android logo image - FileProInfo.comOpen FOS 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.

FOS file extension icon image.About FOS - Fallout 3 Saved Game

FileProInfo is to help you understand about the Fallout 3 Saved Game with *.FOS suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for FOS. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

If you would like to suggest any additions or updates to this page for FOS, please let us know.

Updated 12/1/2024


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