No, I don't believe that simply creating the file in an earlier version is causing this problem.
Is it possible that the print area has been locked using this technique:
Locking the Print Area https://excelribbon.tips.net/T011497_Locking_th...
Excel allows you to specify an area of your worksheet that should be printed. Here's how to "lock" that area so it cannot be changed.
Have you tried clearing the print area before setting the new one:
Clearing the Print Area
https://excelribbon.tips.net/T010002_Clearing_t...
Article Synopsis: Excel allows you to specify which portions of a worksheet should be printed when you send output to your printer. If you want to get rid of a defined print area, there are a couple of ways you can do it.