The reports (Chart of Accounts budgets or the Financial Reporter) can only display the numbers that are stored. If those numbers are incorrect for any reason, then it follows that the reports will also give unexpected results.
It might be that you edited or imported budgets and intended to update numbers for a particular year, but in fact updated the numbers for a different year by mistake. This is speculation.
To update budgets via Importing, you need to create a file with the budget numbers - this could easily be accomplished using the File / Export / Budgets function. Or use the Excel spreadsheet you already have. Once the correct numbers are determined, use the File / Import / Budgets function to bring those numbers in from the Excel file. The 'File defaults' tab in the Import Template allows selection of a particular fiscal year to update - you can only update numbers for one year at a time. Thus you can re-import the budget numbers for specifically the prior year by selecting that year from the 'defaults' tab of the import template prior to importing.
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Regards,
Softrak Tech Support