SD File

What are SD files and how to open them

Are you having problems opening a SD 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 SD files.

What is a SD file?

SD files have multiple uses, and ESPS Sampled Data is one of them. Read more about the other uses further down the page.

ESPS Sampled Data

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 SD files

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

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

Last updated: January 25, 2025

All known file formats using extension .SD

While ESPS Sampled Data is a popular type of SD-file, we know of 2 different uses of the .SD file extension. Different software may use files with the same extension for different types of data.

Train Simulator Shape Definition

We know that one SD format is Train Simulator Shape Definition. 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 SD files. Remember, different programs may use SD 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 SD file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.