Hello,
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First of all, please note that MSI and EXE support in the Microsoft Store is currently in a limited public preview phase.
Based on the document here: Provide package details for your MSI or EXE app, it says You must enter at least one versioned secure URL pointing to app package (MSI/EXE) hosted on your CDN.. This is required if you want to upload your MSI or EXE app to the Microsoft Store.
Thank you.
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