
If it can help anyone else: I selected the cells with Drop Down menus and chose DATA VALIDATION and re-entered which cells to take the data from (so mainly from the SETTINGS worksheet to the BETS worksheet)
Example in BETS worksheet:
BOOKMAKER - select cells (B11!1000) - DATA VALIDATION (from Data menu) => CRITERIA -> List from a Range - >Settings!C6:C13
- and it worked!

So basically the STANDARD and ADVANCED Betting Tracker docs work in Google Sheets.
Here are the 2 main steps I had to take:
1- Open the Excel document (standard or advanced) and UNPROTECT all the worksheets (password: sport) and save under a diff. name
2- Import that document into Google Sheets
2- Re-format the Drop Down cells in the BETS worksheet using the method above.
PS: I believe there is still an issue with the cells: Recent Summary (Concluded Bets) => dates are not compiling properly.
But this could be due to mis-handle on my side, I will investigate and come back if I find anything...
Leave a comment: