Say a spin button is linked to a cell that has a value of 8 and the
shared workbook has just been saved by personA, is it possible that
when personB comes to use the spin button it will only allow them to go
to 9 or 10 etc but not down to 7.

It needs to be able to let person B move the value as high as they want
e.g 12, and be allowed to come down to the value that the workbook was
last saved at i.e 8.

Is this easily possible?

Any help greatly appreciated

Jason