Download & Install Azure Storage Explorer from here --> Azure Storage Explorer – cloud storage management | Microsoft Azure
Click on the Open Connect Dialog on the left hand side panel. Connect to Azure Storage Dialog will open as shown below
Select Blob container
In the next dialog select Shared access signature URL (SAS)
Enter the Blob container SAS URL which was shared with you.
In the last dialog, hit the Connect button.
In a few moments, the Blob container contents will be shown
The Docker files are inside a docker folder of the above shown folders.