Yamaha has just posted updated versions for OS 3.0 for download. The PDF version of the Operation Manual and the Excel version of the Data List are available.
https://usa.yamaha.com/products/music_production/synthesizers/montagem/downloads.html
The Excel spreadsheet has "all" the same issues the PDF data list has with the SysEx tables. I didn't check one by one but I saw missing address LSBs, LSBs and as all 0. Two repeated issues in the PDF. So get your red markers out.
Current Yamaha Synthesizers: Montage Classic 7, Motif XF6, S90XS, MO6, EX5R