A daily updated filename extension database!

XSO file extension

The table below provides useful information about the .xso file extension. It answers questions such as:

  • What is the .xso file?
  • What program do I need to open a .xso file?
  • How can the .xso file be opened, edited or printed?
  • How can I convert .xso files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 1 alias(es) found in database

✅ Expresso Project

XSO file is an Expresso Project. Ultrapico Expresso is a regular expression development tool.
XSO format description not yet available
Application: Expresso
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
XSO aliases:
XSO related links:
XSO related extensions:

✅ XKeyBrew Menu Data

XSK file is an XKeyBrew Menu Data. XKeyBrew is a desktop application that help you manage your xbox360 original backup games.
XSK format description not yet available
Category: Data files
Application: XKeyBrew
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
XSK aliases:
XSK related links:
XSK related extensions:

Other types of files may also use the .xso file extension.

🚫 The .xso file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

aso, cso, dso, so, sso, xco, xeo, xo, xos, xs, xsi, xsk, xsp

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Extensible Stylesheet Language Transformations
ActionScript Object
Unix Shared Library
CSO Compressed PSP ISO Image
High Level Shader Language Compiled Bytecode
Age of Empires III AI Settings
Hummingbird Exceed Startup File
SymbianOS Dynamic Shared Object
DAZ Studio Object
Xaos Tools Bitmap Image

🔴 Can't open a .xso file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .xso file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .xso file extension, write to us!

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