Hi,
You can use this formulae. It works on the basis of if the Day is Saturday it adds 2 days to it to get you to Monday and if it is Sunday then it adds up 1 days to get you to monday.
IF(MOD(WEEKDAY(Cell_Ref),7)=0,Cell_Ref+2,IF(MOD(WEEKDAY(Cell_Ref),7)=1,Cell_Ref+1,Cell_Ref))
Cell_Ref =...