||Windows Compressed Enhanced Metafile
||★ ★ ★ ★ ☆ Common
Compressed image format used by Microsoft programs such as MS Office and Visio; similar to Enhanced Metafiles (.EMF files), but compressed using the .GZIP compression algorithm.
EMZ files can also be decompressed using a GZIP decompression utility such as GZIP (gzip.exe) or SharpZipLib; they can then be opened as standard EMF files.
||June 17, 2009
Information from the PC File Extensions Reference