FS File: What is it?

Author:   |   Edited: December 05, 2018

Microsoft Silver

FS File Summary

There are four file types associated with the FS File Extension, with the most widely-observed being the Visual F# Source File format. According to our database, four distinct software programs (conventionally, Microsoft Visual Studio developed by Microsoft Corporation) will enable you to view these files. These files can be categorized as Developer Files, Plugin Files, or Vector Image Files. In the majority of cases, these files will be Developer Files.

We have found FS files on the Windows, Mac, and Linux operating systems. They are both mobile and desktop device friendly. With a Popularity Rating of "Low", these files are not very common to your average computer user.

Please see the detailed information below to learn more about FS files and the programs that can open them. In addition, we provide simple troubleshooting information to help you open your FS file.

Low
Prevalence
1607
Standing

/ 11690

Active

Mode

5

December

2018

Revised

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Known FS Files

  4 known file types use this extension

Primary FS File Association

.FS
File Ext:.fs
File Type:Visual F# Source File

Source code file written in Microsoft's F# programming language, a variant of the ML language.

Organization: Microsoft Corporation
Kind:Developer Files
Subkey: HKEY_CLASSES_ROOT\.fs

Software Programs That Open The Visual F# Source File:


Microsoft Visual Studio by Microsoft Corporation

Windows

More FS Files

.FS
File Ext:.fs
File Type:Mac OS X File System Plug-in

FS file enables support for a certain file system in Mac OS X. It enables the Mac operating system to recognize hard drives and other media formatted with different file systems.

Organization: Apple
Kind:Plugin Files

Software Programs That Open Mac OS X File System Plug-in Files:


Apple OS X by Apple

Compatible with:

Mac
.FS
File Ext:.fs
File Type:FlexiSIGN Document

FS is an image file created by one of SAi's Flexi FAMILY software products. It stores the text, dimensions, graphics, and plotting properties for a sign.

Organization: SAI
Kind:Vector Image Files

Software Programs That Open FlexiSIGN Document Files:


FlexiSIGN by SAI

Compatible with:

Windows
Mac
.FS
File Ext:.fs
File Type:NetBSD System File

FS file used for one of the main system files in NetBSD system. Typically found as BOOT.FS file. Contains data and settings need for the boot process.

Organization: Open Source
Kind:System Files

Software Programs That Open NetBSD System File Files:


NetBSD by Open Source

Compatible with:

Linux

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FS Usage


Device Breakdown

Desktop (84.34%)
Mobile (14.29%)
Tablet (1.37%)


Sources of FS Problems


Troubles Opening FS Files

Microsoft Visual Studio Disappeared

When you double-click your FS file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". If this is the case, it's usually due to the fact that you do not have Microsoft Visual Studio for %%os%% installed on your computer. The OS won't know what to do with your FS file, so double-clicking to load the file doesn't work.


Tip: If you don't have Microsoft Visual Studio installed, and you know of another program to open your FS file, you can try opening it by selecting from the programs listed under "Show Apps".


Wrong Version of Microsoft Visual Studio is Installed

It is possible that your version of Microsoft Visual Studio isn't able to open your Visual F# Source File file due to incompatibility. If you do not have the proper version Microsoft Visual Studio (or any of the other programs listed above), you may need to try downloading a different version of it, or one of the other software applications listed above. Most of the time your Visual F# Source File file was created by a newer Microsoft Visual Studio than what you have installed.


Tip: Investigate your FS file by right-clicking and selecting "Properties" to find clues on what version you need.


Regardless, most of the FS file opening problems relate to not having the right version of Microsoft Visual Studio installed.


Other FS File Opening Causes

In the majority of cases, installing the right version of Microsoft Visual Studio will resolve your issue. There can be external issues inside of %%os%% that are causing these errors when opening FSs. Additional factors include:

  • Invalid FS file references in the Windows Registry (the "phonebook" of the Windows Operating System)
  • Corruption of the FS file description inside the Registry
  • Defective install of a FS program, such as Microsoft Visual Studio
  • Something has caused file corruption of your FS
  • FS file integrity has been compromised by malware
  • Device drivers of the hardware associated with your FS file are corrupt or out-of-date
  • Too many applications are open on your PC to load your Visual F# Source File file successfully

Quiz: What file extension was created by Adobe Corporation in 1992?









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