It's where I "choose the odds" I don't understand. I use a modified version of a spreadsheet I downloaded here (Back the Third Favourite -
https://www.gruss-software.co.uk/forum/viewtopic.php?f=8&t=4886)

- excel_snip.JPG (11.06 KiB) Viewed 8621 times
I assume the odds are sent to Gruss from the odds column as shown. If I change this to 1.01,Gruss seems to still be trying to place the last updated odds, not 1.01.
Apologies, if I'm missing something obvious. I don't have much of an understanding of how Excel "talks" to Gruss.