QB Issue Resolution:

you will have to install a new desktop software to do the export to QBO

this one is free for that purpose

https://qboe.custhelp.com/app/answers/detail/a_id/4665

Resolution for Issue 'Is is possible to import data from my 2009 QB Pro desktop edition into QB online when all I have is the company file?' available: Yes (Solved).
Source: Intuit Community forum.

Is is possible to import data from my 2009 QB Pro desktop edition into QB online when all I have is the company file?: 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 Company File
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!

Error Recovery for Company File [Canada]
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