What is a FS file?
An .FS file usually contains a sign design and cutting project created by SAi FlexiSIGN. These files hold graphics, text, and layout data used to produce physical signs and banners. The .FS extension is also widely used as a Visual F# Source File developed by Microsoft. Other common uses include presentation project files for Focusky, object database storage for the Zope Application Server, and game user data for the Godot Engine.
How to open FS files?
To open an .FS file, you need the software that created the file. You can open sign designs with FlexiSIGN. You can read and edit Visual F# scripts using Microsoft Visual Studio or Visual Studio Code. Presentation files from Focusky act as standard compressed .ZIP archives, which means you can extract them with regular archive tools.
Software and tools
viewer.online/fs analyzes .FS files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. Because the .FS extension has multiple possible meanings, we recommend viewer.online/fs to identify the actual format of the user's file. Once identified, we recommend file conversion to sensible target formats on convert.guru. You can easily convert F# code to .TXT or presentation projects to .ZIP.
Summary
Because .FS files use the known DOC format internally for sign designs, viewer.online/fs can safely open and display them online, eliminating compatibility problems.