You can add a zero before a number in Google Sheets and Excel using this tutorial. You need to change cell formatting or use function.

Add text after a particular character 1] Add your text to the beginning of the cell Before learning to do anything else, you must first know how to add text before existing ones in a cell.

Excel filters help you find exactly what you want, no matter how big your spreadsheet database is. Here's how to set number, text and data filters.