Please send the sample spreadsheet to me via e-mail, as attachments get stripped (or at least they do on the web interface) by this Groups.io group. I'll take a look and download JAWS so I have it in 40 minute mode.
Also let me know whether it's column headings, row titles, or both that you're looking to have spoken as you traverse the table. I do know that when I was last working with Excel and JAWS it will only read the column title once, when you land in that column, if you stay within it (move up/down) and the same was true of the row title (move left/right).
Brian - Windows 10 Pro, 64-Bit, Version 1809, Build 17763
Here is a test to find out whether your mission in life is complete. If you’re alive, it isn’t.
~ Lauren Bacall