Hi,
Welcome to Microsoft Q&A community forum!
you can try using the storage explorer tool
https://azure.microsoft.com/en-us/features/storage-explorer/#overview
if you can't access the vhd, you can open a support ticket to the Azure team at the following link
https://portal.azure.com/#view/Microsoft_Azure_Support/HelpAndSupportBlade/~/overview
to enable you to download the data.
Hope this helps
Cheers
Luca
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