Using Barcode Scanner To Populate Fields

We have to process these vouchers with the following data items:

Log ID
Vendor Name
Invoice Number
Invoice Date
Cost Code or GL Acct
Amount
Description
Payment Approver
Date

We get the vouchers from another department and then we're required to key them into the billing system. I'm looking for a way to automate some of this task because it's getting tedious to key in all the information into the billing system when it's already on the voucher form.

We have a barcode scanner and am wondering if we could use that to scan the voucher and automatically populate the fields into Excel.