The first step is to download and install Zimbra to MSG Converter.
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Click on the Browse button and add TGZ files that you want to export.
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Get a complete display of Zimbra files and check the files before moving them for conversion.
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Select MSG file format in Export options.
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Go to the Browse button and select an output location to save the exported MSG files.
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To start the conversion, hit the Generate Now button.
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