Quickbooks 2011: How do I export vendors' transactions to Excel to edit?

I need to export one of my vendors transactions from Quickbooks 2011 to Excel so I can edit it. Quickbooks has a way of automatically filling in "splits" and over the past 3 years it automatically filled in a customer in the "Customer:Job" field that isn't relevant to anything. I want to import into Excel, delete the values in the "Customer:Job" field and re-import the transactions back into Quickbooks, overwriting the old ones.