What format did you select for the Excel export of the GL Detail Listing report?

Why are you exporting the GL Detail Listing Report? There's an ExcelDirect button on the View Transactions / Budgets Grid.

Or, used the attached financial statement to select any set of accounts and departments and drill down to see the transactions and send them to Excel. You can choose the columns that get sent under the View | Customize | Settings tab in the financial reporter.