I think what You want is this: "Save" & 'numberVariable'
For example if You want to name Your save file "Save 5", and 5 is inside the global variable numberVariable, then You write the name of the save file as: "Save " & global('numberVariable')
EDIT:
I just saw You want the number value from the .INI file.
Then You would basically write it the same; just replace the global variable with the .INI file value: "Save " & INI.ItemValue(Group, Item)