FSD File

What are FSD files and how to open them

Are you having problems opening a FSD file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your FSD files.

What is a FSD file?

FSD files have multiple uses, and COCO/COFE Flowsheet Document is one of them. Read more about the other uses further down the page.

COCO/COFE Flowsheet Document

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open FSD files

Important: Different programs may use files with the FSD file extension for different purposes, so unless you are sure which format your FSD file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested six different FSD openers which you will find listed below.

Last updated: July 30, 2023

All known file formats using extension .FSD

While COCO/COFE Flowsheet Document is a popular type of FSD-file, we know of 2 different uses of the .FSD file extension. Different software may use files with the same extension for different types of data.

Flight Sim Toolkit Shape

We know that one FSD format is Flight Sim Toolkit Shape. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

These apps are known to open certain types of FSD files. Remember, different programs may use FSD files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about FSD file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.