I can provide the NKJV footnotes in a commentary module for you by email if you would like
Thanks Tj, that's very thoughtful! I was fortunate enough to have saved an old QuickVerse Bible software from Parsons which had the NKJV (including NKJV footnotes) in STEP format and I was able to convert the STEP format to RTF format using a utility that I downloaded here BibleSupport.com. I was then able to create an e-Sword commentary module containing just the NKJV footnotes from that RTF file using e-Sword ToolTip Tool NT. If your commentary module also contains other NKJV Center-Column notes in addition to the footnotes, then I would definitely be very interested in that.