A daily updated filename extension database!

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?
  • Where can I find the specifications for .upx?
  • Which MIME-type is associated with the .upx extension?

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

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

MetaVR 3D Model
IGOR Pro Unpacked Experiment File
Ultimate Paint Graphics Editor Plugin
iPIX Panoramic Image
JPEG 2000 Bitmap Image
Program Update Information
Borland Together Implementation Project
JBuilder Project
VisualBoy Advance UPS Patch File
Kid Pix Picture

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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