The WMZ file type is primarily associated with Windows by Microsoft Corporation. These are basically zipped .WMF files; if you have an editor that will accept .WMF files try unzipping the .WMZ file and then importing them into the editor. They will likely import as a single grouped object instead of individual objects, however. Later versions of Word, Powerpoint and other Office programs should open these files directly. It's unfortunate that Microsoft used the same file extension for two different, but popular, formats.
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You can use it on electronic devices such as computers, tablets, and mobile phones.