Open FSI file - The best software for opening .fsi files

FSI files: what are they and how do I open them?

Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

.fsi file type #1: Microsoft Visual F# signature data

An fsi file extension is related to the F# a functional programming language. An fsi file contains signature data.

Further details:

The fsi file extension is associated with Microsoft Visual F#.

F# is a functional programming language for the .NET Framework. It combines the succinct, expressive, and compositional style of functional programming with the runtime, libraries, interoperability, and object model of .NET.

The fsi files are used for signature files used by Visual F#, a component of Microsoft's Visual Studio software development kit. The .fsi signature files contain information about the F# program element's public signatures, including types, namespaces, and other components.

The .fsi files can be used to specify accessibility rules to program code within an .fs file. This technique is used to restrict access to other program code that executes outside of the controlled .fs file.

The .fsi files always have the same filename as their associated .fs file.

Open file with:

Microsoft Visual Studio

IDE for creating programs, or websites and web applications

.fsi file type #2: FileSplit data

Files with fsi file extension can be found as split files created using the FileSplit utility.

Further details:

The fsi file extension is also used by the FileSplit, a file splitting utility for its default split file.

Used to split large files to several smaller ones. Probably obsolete software.

Open file with:

FileSplit

A data file split tool for Windows

.fsi file type #3: FSI Viewer configuration

An fsi file suffix is related to the FSI Viewer configuration data.

Further details:

The fsi file extension is associated with the FSI Viewer, a web based picture viewer aimed for high resolution images.

The fsi file stores some kind of configuration of FSI Viewer.

Open file with:

FSI Viewer

On-line picture image viewer

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.fsi" has the file extension "fsi". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

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We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.