A daily updated filename extension database!

SSO file extension

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

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

Table of Contents

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

1 extension(s) and 0 alias(es) found in database

✅ ChessDB Saved Search Options

SSO file is a ChessDB Saved Search Options. ChessDB is a free chess database which can be used on Microsoft Windows, Linux, Mac OS X and FreeBSD.
Application: ChessDB
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
SSO aliases:
SSO related links:
SSO related extensions:
ChessDB Game Data

ChessDB Index Data

ChessDB Name Data

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

🚫 The .sso file extension is often given incorrectly!

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

cso, eso, sco, so, sos, sqo, ss, ss0, ssi, ssk, ssl, ssp, swo, wso, xso

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

CSO Compressed PSP ISO Image
Axialis Screensaver Producer Project
SriSun Image
SOSI Spatial Data
XKeyBrew Menu Data
High Level Shader Language Compiled Bytecode
The Sims 3 Mesh Data
SAP Business Objects Shared Security Information File
Adventure SOS Compiled Walkthrough
EnergyPlus Simulation Output

🔴 Can't open a .sso 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 .sso 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 .sso file extension, write to us!

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