QB Issue Resolution:

Yes, you’re right it doesn’t work properly for 99% of everyone because an IIF file is associated with QuickBooks when QuickBooks is installed, and you can’t open an IIF file with QuickBooks by launching (double-clicking) the file, which is what this QB link/code is doing.¬† I’ve no idea how Intuit¬† came up with this, as it’s pretty basic stuff to figure out that it won’t work for anyone. All you need is a basic understanding of how windows works to be able to figure this out.

 

You can get around this sort of nonsense in QB 2019 by following these recommendations:

BRC QuickBooks 2019 IIF Import Changes and Recommendations

 

Resolution for Issue '2019 iff review not opening' available: Yes (Solved).
Source: Intuit Community forum.

2019 iff review not opening: 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 BRC QuickBooks 2019
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Error Recovery for BRC QuickBooks 2019 [Canada]
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