There is only one file type that uses the .UUE extension:
A UUE file is a file encoded with uuencode, a Unix program that converts binary files to a text format. It stores the encoded textual representation of a binary file and must first be decoded to open the original file. UUE files are commonly used for emailing documents so the file does not become corrupted.
"UUE" stands for "Unix to Unix Encoding." It is most often used to transfer files between Unix-based systems. UUE files can be decoded to the original binary file with uudecode, or another UUE decoding utility.
NOTE: UUE files can be decoded with a Web browser using the Web Utils Online UUEncoder UUDecoder Tool website.
Updated: December 19, 2015