Let me chime in and provide additional details about uploading company files from QuickBooks Desktop to Online, @userdonaldnothnagel8.
You can convert QuickBooks Desktop (QBDT) data to QuickBooks Online (QBO) if using the US, UK, and Canada versions. Ensure also to have the latest version of QuickBooks to perform this task.
Once done, choose the File menu and then click Copy Company File for QuickBooks Online under Utilities. For detailed steps about the process, you can refer to this article: Move your QuickBooks Desktop file to QuickBooks Online.