You can export data from QBW files in QuickBooks Desktop (QBDT) to Excel. After that, convert it to CSV format and then import it into your QuickBooks Online (QBO) Global account.
As of now, direct region-to-region data migration from QBDT US to QBO Global isn't possible due to differences in localization and compliance standards. However, you can manually transfer data by following the steps below as a workaround.