Extracting Data from Archived data files in R/3

Hi Experts,
I have a situation here!!!
I want to extract data from R/3 for BW. In R/3 system, data is present in archived files (which are not in readable format). In R/3 system, the report definitions are ABAP codes which give output. These ABAP codes uses same infostructure, archived files are also same, but the logic is different for every report. I am trying to modify these ABAP codes to get data in a format which can be loaded in BW, but then i have to make different cubes for different report outputs in BW.
Is there any way in which i can read the structure of these archived files so that i can design a single cube to store data of these files?

Hi Arindam,
It is possible to extract archieved data from R/3. Following link contains the 'How to' guide for the same.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/c0ded994-c520-2a10-9da7-bc92c9e9882d
Hope this will be helpful. Thanks.
Sumit

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