Here's how to do it:
- Open the file you wish to edit on MS Excel.
- Select a cell and type in "=UPPER"
- Add an open parenthesis, click on the desired cell, and then close the parenthesis.
- 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.
- You can follow the same steps to convert to lowercase or proper case if needed.
