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Details of extension .fsi

On this page, we're going to take a closer look at the .fsi file extension.

We'll explain what exactly a .fsi file format is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .fsi files into different formats, we'll give you some tips on how to do that too.

Let's see the 4 file formats associated with this file extension!

Contents

  1. F# Signature File
  2. FME Feature Store Spatial Index Data
  3. FSI Viewer Configuration
  4. FileSplit Data

We trust that our website will provide valuable information for you. If you have any questions, just ask!

F# Signature File

fsi file - F# Signature File
The FSI file belongs to the Development category and works with Microsoft Visual Studio, being used as a F# Signature File. F# is a mature, open source, cross-platform, functional-first programming language which empowers users and organizations to tackle complex computing problems with simple, maintainable and robust code. The developer is still actively supporting the Microsoft Visual Studio, likely. Our data shows that Microsoft Visual Studio uses 308 more file types.
Program name: -
Category: Development files
Mime-type: application/octet-stream
Aliases:
-
Related extensions:
.fsx F# Script
.f# F# Source Code
.fsproj Visual F# Project
.fs F# Implementation

FME Feature Store Spatial Index Data

fsi file - FME Feature Store Spatial Index Data
The FSI file belongs to the Data category and works with FME Desktop, being used as an FME Feature Store Spatial Index Data. FME Desktop is a flexible and powerful spatial ETL toolset used by thousands of GIS Professionals worldwide to quickly translate, transform, integrate data. The developer is still actively supporting the FME Desktop, likely. Our data shows that FME Desktop uses 20 more file types.
Application: FME Desktop
Program name: -
Category: Data files
Mime-type: application/octet-stream
Aliases:
-
Related extensions:
.fmx FME Desktop Custom Transformers Data
.fmf FME Desktop Metafile
.fmv FME Desktop Viewspace Data
.gsb FME Desktop Grid Shift Data

FSI Viewer Configuration

fsi file - FSI Viewer Configuration
The FSI file belongs to the Configuration category and works with FSI Viewer, being used as a FSI Viewer Configuration. NeptuneLabs FSI Viewer (short for "Flash based Single Source Image Viewer") is a web based viewer for high resolution images. The developer is still actively supporting the FSI Viewer, likely. Based on our current information, FSI Viewer does not use other file types.
Application: FSI Viewer
Program name: -
Mime-type: text/xml
Aliases:
-
Related extensions:
.nts Lotus Traveler Bootstrap File

FileSplit Data

fsi file - FileSplit Data
The FSI file belongs to the Data category and works with FileSplit, being used as a FileSplit Data. FileSplit is a utility that splits large files into smaller files. The developer no longer updates FileSplit and does not provide support anymore. Based on our current information, FileSplit does not use other file types.
Application: FileSplit
Program name: -
Category: Data files
Mime-type: application/octet-stream
Aliases:
-
Related extensions:
.fsp Fsplit Split Data
.wip East-Tec Eraser Temporary Disk Wiping Data
.saf 12Ghost Power Tools Data
.mdk Astra Schedule Schedule Data

The .fsi file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .fsi extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .fsi file extension wrong?

In our database, we came across the following similar extensions:

.tsi TSplayer Data
.fso Adobe Flash Media Server Remote Shared Object
.fs FlexiSign Document
.bsi BSPlayer Configuration
.sfi SafeFolder Encrypted File
.fxi File-Ex Configuration Data

The .fsi extension is frequently misused

People sometimes confuse the .fsi filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

tsi (1), fso (1), fs (1), bsi (1), sfi (1), fxi (1), vsi (1), fi (1), esi (1), fsk (1)

Having trouble opening a .fsi file?

If you want to open a .fsi file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .fsi association can trigger this error.

Windows can't open this file:

File: example.fsi

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program with which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android