I couldn't find this from Microsoft support page, but Is it possible to add description/metadata to an Azure Blob using Azure Portal? Without using any lines of code.
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):
问题:
回答1:
Use Microsoft Azure Storage Explorer to do it. http://storageexplorer.com/releasenotes.html
It allows you to edit metadata graphically like so:
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