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UPX file extension

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

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

✅ UPX Compressed File

UPX file is an UPX Compressed File. UPX (Ultimate Packer for eXecutable) is a free, portable, extendable, high-performance executable packer for several executable formats.
UPX format description not yet available
Category: Archive files
Application: UPX
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
UPX aliases:
UPX related links:
UPX related extensions:

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

🚫 The .upx file extension is often given incorrectly!

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

hpx, ipx, jpx, kpx, px, ulx, upc, upd, ups, upz, ux, uxp

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

ETCBC Parsed Text Data
Paradox Primary Index File
PX Submission Summary Data
Program Update Information
JBuilder Project
MetaVR 3D Model
UltraMixer Preset Data
iPIX Panoramic Image
Starmoney Agent Download Data
Glulx Game File

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

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