With the help of the link How Do I Install/Upgrade/Uninstall an AppExchange App, you can easily understand how to install/upgrade/uninstall the app from the AppExchange.
P.S. Discover Azure Integration, the easy way to upload files from any Salesforce record to Azure. Find it on AppExchange: https://appexchange.salesforce.com/appxListingDetail?listingId=c9e71bd6-5bab-4182-a461-b82d4f971183