Convert EMZ to EMF

Microsoft Windows compressed enhanced metafile (EMZ) is essentially EMF file compressed further compressed using Gzip. Which means that in order to get the original .emf file out of the .emz file, the only thing you have to do is decompress the file with any file archiver that supports GZIP. Of course you can also "resave" these files with any graphics software, this will essentially achieve the same. You can even find online graphics converters that offer support for emz to emf conversion.