Hi I have created a spreadsheet with multiple sheets (about 100) and one reference sheet if I put in formula ='s (7)'!$F$70 in the referance sheet (which points to f70 in sheet 7 then fill down I want it to chage the sheet referance (in this case s (7) to s(8) then s(9) etc but all I get at the moment is a duplicate cell.. please help tried all I know

Thanks in advance

Gregor