@TommyTsui-9016 Thanks for posting in our Q&A.
Based on my search, I didn't find any information about the format should be for ASR exclusion in a network location. With Q&A limitation resource, it is suggested to create an online support ticket to get more help. Here is the support link:
https://learn.microsoft.com/en-us/mem/get-support
Thanks for your understanding and hope everything goes well with you.
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