Hello @Sanjay Sharma ,
Welcome to the Microsoft Q&A platform.
Unfortunately, Azure Purview does not support export purview lineage, data map and other data.
I would suggest you to vote up an idea submitted by another Azure customer.
https://feedback.azure.com/forums/932437-azure-purview?query=export
All of the feedback you share in these forums will be monitored and reviewed by the Microsoft engineering teams responsible for building Azure.
Hope this helps. Do let us know if you any further queries.
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