Hi Kumar,
I'm not sure if i understand your question correctly.
Usually export jobs would provide data in csv/json format and if you specify uri in a file you can extract for 5000 uri using file based search and export via UI.
Link for UI search in file: Working with Advanced Search Filter Options | Reltio
I would assume you use API to get CSV instead of JSON:
This may not be possible directly, but you can leverage RIH or any other integration/ script to normalize into desired format like csv with n no of columns.
Let us know your requirements.
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Sheshadri V
Fresh Gravity
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