I've been given some wide panel data where the names of the first 28 variables were simply repeated over and over in sequence without any suffix. Stata wouldn't allow this during the import, so all subsequent variables after the first 28 simply have the column letters from excel. Is there a way I can tell Stata to reuse the initial set of variable names across the next 28 variables (or ideally, all 3 sets of 28) while applying a suffix to make them unique?

Thanks,
Joe