Guide

1. Open the file you wish to edit on MS Excel.

2. Select a cell and type in "=UPPER"

3. Add an open parenthesis, click on the desired cell, and then close the parenthesis.

4. Press Enter, then drag the fill handle (the small square at the bottom-right corner of the cell) to the cells where you want the same function applied.

5. You can follow the same steps to convert to lowercase or proper case if needed.