Bdocs- from CRM to ECC

Hi

I have a requirement where i have to find the account details like 'acc id, acc name', etc & the 'transaction status' from the unprocessed BDOCS from CRM to ECC.

Actually the data flows from Oracle - Siebel - Crm - Ecc.

The problem is we have some UN-processed Bdocs from Crm to Ecc for which for every account details changed a new Bdoc have been created and those changed Bdocs have to be found and know the account details (like Acc id, Acc name) & Transaction Status for all the generated Bdocs and get them into one Excel sheet.

Please help me to get the details.