Data entry in large tables can be complicated, first of all because, by adding new rows, the header disappears from the screen. Therefore, we are not sure in which column we enter which data, so the work is much slower. “Freezing” rows or columns is a technique by which we fix one or more rows or columns so that they always appear on the screen. At the same time, we can continue to fill in the data of new rows and/or columns with a clear idea of where we need to enter.