QB Issue Resolution:
You cannot import from a backup, it must be a QBW (data) file, from the QB desktop program itself.
Resolution for Issue 'I AM TRYING TO IMPORT MY QUICKBOOKS DATA TO QUICKBOOKS ONLINE FROM A BACK UP ON A FLASHDIRVE…' available: Yes (Solved).
Source: Intuit Community forum.
I AM TRYING TO IMPORT MY QUICKBOOKS DATA TO QUICKBOOKS ONLINE FROM A BACK UP ON A FLASHDIRVE…: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for Import
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!
Error Recovery for Import [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.
Additional Support Options: