What is .UPX file extension?
.UPX file extension is a known file type. This section tells you everything you need to know about this extension.
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.
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.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.