.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.

Associated Developers and Software

	FSI Viewer by NeptuneLabs
	Microsoft Visual Studio by Microsoft Corporation
	FileSplit by Partridge Software

Top FSI User Languages

Top FSI File User Browsers

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Top User Operating Systems


Windows 10	Windows 11	Windows 6	Windows 8.1

Associated Operating Systems

	Windows
	Web

Other File Types Related to FSI Files

Extension	File Type Developer	File Category	File Type Description
.IN	Bitplane	Data Files	SmartGENERATOR Template File
.RBK	Microsoft Corporation	Backup Files	Windows 95 Registry Backup File
.FML	Headlight Software	Web Files	GetRight File Mirror List
.OFX	Intuit, Inc.	Data Files	Open Financial Exchange File
.DIA	Spacetornado Software	Database Files	Do It Again Task File
.AEU	Microsoft Corporation	GIS Files	Microsoft AutoRoute Express Europe Route Data
.B	Rockstar Games	Game Files	Grand Theft Auto 3 Saved Game File
.XQL	Open Source	Developer Files	XML Query Language File
.DVR	Microsoft Corporation	Video Files	Microsoft Recorded TV Show
.WBMP	XnSoft	Raster Image Files	Wireless Bitmap Image File