.UPX File Extension

.UPX File Extension

File Type

Ultimate Packer for eXecutables File

Developer Markus Oberhumer
Popularity
2.7  |  3 Votes
Category Executable Files
Format Binary

What is a UPX file?

File created by Ultimate Packer for eXecutables (UPX), a program used to compress executable files; contains a packed executable file, such as an .EXE file, that has compressed at a high ratio; used to reduce the file size of executables for transport via email or external media.

More Information

Ultimate Packer for eXecutables automatically unpacks UPX files when they are executed. On some operating systems, it stores the unpacked file in memory using the in-place technique. On other operating systems, it creates a temporary file using the extraction technique.

NOTE: UPX files rarely use a ".upx" file extension. Rather, they most often use their original file extension after being compressed.

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Programs that open UPX files

Windows
Ultimate Packer for eXecutables
Free
Linux
Ultimate Packer for eXecutables
Updated December 28, 2010

Verified by FileInfo.com

The FileInfo.com team has independently researched the Ultimate Packer for eXecutables file format and Windows and Linux apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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