.FS File Overview

File Extension: FS
File Type Description: Visual F# Source File
File Type Developer: Microsoft Corporation
Primary Associated Software: Microsoft Visual Studio
Primary Software Developer: Microsoft Corporation

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What is File Extension FS?

The FS file extension is a Visual F# Source File file developed originally by Microsoft Corporation for Microsoft Visual Studio. Data from our web servers (annonymous users) show that FS files are most popular in United States and are often used by Windows 10. A vast majority of these users are opting to use Google Chrome as their preferred internet browser.

Top FS User Languages

Top FS File User Browsers

Desktop Friendly?


Mobile Friendly?


Most Popular FS File Countries

Top User Operating Systems

Windows 10 Windows 11 Windows 6 Windows 8.1

Associated Operating Systems


Other File Types Related to FS Files

Extension File Type Developer File Category File Type Description
.XLK Microsoft Corporation Backup Files Excel Backup File
.ODP Oracle Corporation Data Files OpenDocument Presentation
.CHG Quicken Data Files Quicken Online Data File
.PJPEG Microsoft Corporation Raster Image Files Progressive JPEG Image
.JNT Microsoft Corporation Data Files Windows Journal File
.CPI Sony Video Files AVCHD Video Clip Information
.WER Microsoft Corporation Uncommon Files Windows Error Report File
.PFILE Microsoft Corporation Encoded Files Rights Management Protected File
.QTM Apple Video Files Apple QuickTime Movie
.BK2 Microsoft Corporation System Files Windows Indexing Service File

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