Barcode

Hello,
I'm looking for a barcode app that will let me scan a barcode with the camera, then look through a spreadsheet (excel) to find a line of data relating to that barcode and put a sign o write something in the cell next to it or highlight the line with the associated barcode.

So I could setup the spreadsheet file with the barcodes in one column and then scan with my ipad (or even iphone) the barcode and see if that product is on my list.

Does anyone know if there's one like this available?

Thank You