Mr. Narayan,
I have tried as follows:
1. I have made pivot table to add all duplicate invoice amount.
2. I have copied all invoices in 1 column column A & C.
3. =INDEX('Sheet1 (2)'!$A$2:$D$20,MATCH(A2,'Sheet1 (2)'!$A$2:$A$20,0),2) & =INDEX('Sheet1 (2)'!$C$2:$D$20,MATCH(A2,'Sheet1...