There is only one file type that uses the .TLZMA extension:
LZMA Compressed Tar Archive
File archive created using the Tar archiver and compressed with the LZMA compression algorithm; combines a .TAR archive and an .LZMA file into a single archive; typically created on Unix systems.
The "TZLMA" extension is short for ".tar.lzma," which indicates the file has been both archived and compressed.
Updated: October 20, 2009