Home : File Types : UPX File

.UPX File Extension

File TypeUltimate Packer for eXecutables File

DeveloperMarkus Oberhumer
Popularity
2.7 (3 Votes)
CategoryExecutable Files
FormatBinary

Binary

This file is saved in a binary format, which requires a specific program to read its contents.

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, its 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
PeaZip
Linux
Ultimate Packer for eXecutables
Updated 12/28/2010

About this page

Our goal is to help you understand what a file with a *.upx suffix is and how to open it.

The Ultimate Packer for eXecutables file type, file format description, and Windows and Linux programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and do not publish any information we have not been able to verify.

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