Start Quicken and click "File," then "Open." Browse to the new "My Documents\Quicken" folder and select the file with the extension QDF, which is the Quicken Data File.

Finally, I copied the Quicken Quotes file inside the Quicken Essentials folder of the Q2001 folder to the Essentials folder of the Q2002 folder, and opened the updated data file using Q2002.

I'm wondering if installing Quicken 2016 or 2017 would convert it back to an app bundle that the newer version of Quicken could open and convert the data. But alas no trial version, just a 60-day ...

Click the "Open a data file located on this computer" radio button, and then click the "Select File" button. Browse to the location on your computer where the Quicken file is stored, and then ...

At this point, the newly renamed data files and their aliases may be changed back to their original names." Update: Thomas Thatcher notes that this problem happens to him only when running Mac OS 9.x.