I translated your question as:
Hello, it doesn't allow me to download anything from the store. I can't use the extensions.
To download items from Mendix Marketplace you can:
1). connect to the Marketplace from MendixStudio Pro. In this case, the item is directly imported in the App you are building
2). use a browser to visit https://marketplace.mendix.com . After that, in Mendix Studio Pro, you can import the item. You can't launch the file using File Explorer.
To be able to download content, you should be logged in. (in both use cases)
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