.FSI File Overview

File Extension: FSI
File Type Description: Visual F# Signature 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 FSI?

Microsoft Corporation created the Visual F# Signature File (FSI) file for the Microsoft Visual Studio software series. Our internal web tracking data indicates that Windows 10 operating system users, and those living in United States, are the most likely to use Visual F# Signature File files. A high percentage of these users browse the web using Google Chrome.

Top FSI User Languages

Top FSI File User Browsers

Desktop Friendly?


Mobile Friendly?


Most Popular FSI File Countries

Top User Operating Systems

Windows 7 Windows 10 Windows 8.1 Windows XP

Associated Operating Systems


Other File Types Related to FSI Files

Extension File Type Developer File Category File Type Description
.SVH IEEE Xplore Developer Files SystemVerilog Source Code Header File
.VCF Palm Data Files VCard File
.MSVC Microsoft Corporation Data Files Microsoft Visual C++ Compiler Makefile
.JSPA Xinox Software Web Files Java Servlet Alias
.FPT Sage Database Files ACT! Data File
.JXR Microsoft Corporation Raster Image Files JPEG XR Image
.MPE Unknown Developer Video Files MPEG Movie
.VDW Microsoft Corporation Web Files Microsoft Visio Web Drawing
.ECE Escenic Web Files Escenic Dynamic Web Page
.~CU Unknown Developer System Files Windows Cursor File

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