The spreadsheet in post #18 is an Open Office .ods file: https://www.openoffice.org/ if you want to download and use freeware Open Office.
Post # 20 has a Microsoft Excel .xls file if you have Excel. I've also re-attached the file from Post #20, see below. I just tried using the attached .xls, seems to be working for me.
Please update me with your progress.
dave w
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