What does this mean?
I was trying to convert a book from .doc to AZW3. After fiddling with the metadata, I clicked the Convert Books Individually and this message popped up:
calibre, version 3.36.0
WARNING: Could not convert some books: Could not convert the book because no supported source format was found
I don't understand why .doc isn't supported. I'll try saving the .doc as rtf to see if that helps.
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