A file with .emz extension is a compressed container of Enhanced Metafile (EML file). These are compressed using the GZIP compression technique which is the commonly used compression method on UNIX and LINUX operating systems. Unlink ZIP (/compression/zip/), GZIP compresses the archive as a whole instead of compressing individual files. EMZ files are smaller in size as compared to the EMF files and help in fast transfer during online file sharing. Some of the applications that can open EMZ files include Microsoft Visio 2019, Microsoft Office 2019, XnView MP, and File Viewer Plus.
EMZ File Format
EMZ files are Gzip compressed and contains EMF inside. Gzip uses the DEFLATE algorithm for compression of the archive and is different in applying compression. An EMZ file can be decompressed by using GZip compression utilities such as GNU Zip. The file format consists of:
The GZIP file format specifications version 4.3 published by Internet Engineering Task Force (IETF) contains detailed information about the file format.