A daily updated filename extension database!

XTREME file extension

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

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

✅ Winstep Xtreme Theme Pack

Winstep Xtreme Theme Pack .xtreme file icon
XTREME file is a Winstep Xtreme Theme Pack. Winstep Xtreme is a suite of Windows user interface replacement applications.
Category: Data files
Application: Winstep Xtreme
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
XTREME aliases:
XTREME related links:
XTREME related extensions:

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

🚫 The .xtreme file extension is often given incorrectly!

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


Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Winstep Xtreme Theme

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

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