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FSPROJ File - What is an .fsproj file and how do I open it?
Learn about .FSPROJ files and view a list of programs that open them.
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Overview
What is an FSPROJ file? F# developer project file created by Visual F#, a component of Microsoft's Visual Studio software development kit; stores project settings in an XML format; contains references to source code files, included libraries, and other program assets.
More Information FSPROJ files are used for storing F# projects as they are developed. They can be used for building program source code and assets into executable applications.
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DeveloperChillisoft Solutions
Popularity2.0 | 1 Vote
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.FSPROJ File Extension
2 file types use the .fsproj file extension.
Visual F# Project File
| Developer | Microsoft |
| Popularity |
2.8 | 4 Votes |
What is an FSPROJ file?
F# developer project file created by Visual F#, a component of Microsoft's Visual Studio software development kit; stores project settings in an XML format; contains references to source code files, included libraries, and other program assets.
More Information
FSPROJ files are used for storing F# projects as they are developed. They can be used for building program source code and assets into executable applications.
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Programs that open or reference FSPROJ files
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Program Name
Platform
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X
Windows
Microsoft Visual Studio 2022
Free +
JetBrains Rider
Free Trial
Mac
Microsoft Visual Studio for Mac
—
Discontinued
Free
JetBrains Rider
Free Trial
Linux
JetBrains Rider
Free Trial
Category: Developer Files
Updated: July 7, 2010
FireStarter Project File
| Developer | Chillisoft Solutions |
| Popularity |
2.0 | 1 Vote |
An FSPROJ file may also be a project created by FireStarter, a now-discontinued tool used with the Habanero framework for .NET applications. It stores configuration and mapping settings that define how data in a relational database connects to classes in a program. Developers use these files to manage and regenerate class mappings as part of the application's data access setup.
More Information
FireStarter is a tool that helps .NET developers connect their code to a database more easily. It does this by setting up "mappings" that show how the classes in their code correspond to tables and fields in a database.
An FSPROJ file is the project file FireStarter uses to save these settings. It stores all mapping details and configurations, allowing developers to open the file later to view, edit, or regenerate their database-related code.
.NET developers building data-driven applications are the primary users of FSPROJ files. These developers often work with other tools like Microsoft Visual Studio and SQL Server . FireStarter and its FSPROJ project files help simplify the process of integrating databases into .NET software projects.
How to open an FSPROJ file
You can open FSPROJ files with the discontinued Chillisoft Solutions Habanero FireStarter in Windows. To open an FSPROJ file, select File > Open Project .
Programs that open FSPROJ files
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Chillisoft Solutions Habanero FireStarter
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Discontinued
Paid
Category: Developer Files
Updated: July 16, 2025