In future use the Add Books->Add an empty file to selected book records option to create the TXT file and then edit it.
Assuming the files are in the book folders and named summary.txt, you could open the book folder, drag-n-drop the summary.txt file onto the book details panel, and then delete the summary.txt file.
Added: tested in version 6.22.
BR
Last edited by BetterRed; 07-07-2023 at 01:27 AM.
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