.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

Open your files with FileViewPro File Viewer

Download File Opener

FSI

Optional Offer for FileViewPro by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Home File Types Developer Files FSI

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

Desktop Friendly?

Mobile Friendly?

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
.PSC1	Microsoft Corporation	Settings Files	Windows PowerShell Console File
.CFK	Microsoft Corporation	Uncommon Files	Microsoft Developer Studio Diagram File
.C_	Microsoft Corporation	Backup Files	Microsoft Windows WinHelp Compressed Data
.SMIL	"Synchronized Multimedia" Working Group (SYMM WG)	Video Files	SMIL(Synchronized Multimedia Integration Language) Presentation File
.K25	Kodak	Camera Raw Files	Kodak K25 Image
._VBXSLN80	Microsoft Corporation	Data Files	Microsoft Visual Studio File
.AAE	Apple	Data Files	Sidecar Image Format File
.ACS	Microsoft Corporation	Uncommon Files	Agent Character File
.SDF	Microsoft Corporation	Database Files	SQL Server Compact Database File
.BPD	Palo Alto Software	Data Files	Business Plan Pro File