saving worksheet

Good evening everyone I am running excell 2010 when working on a sheet I have used coloms A-J is there a way of just saving that section and then reopen it so all you see is the range that I mentioned earlier .Novice

If you dont want to see columns beyond J, then just hide the columns that you dont want to see next time you open workbook.

Or you want to save the columns A-J and ignore the changes done in other columns? - that is not possible in Excel