1] On Windows and Web. Double-click on the cell where you want to add the line break. Go to where you want the line break and press Alt + Enter.; This will enter a new line of text in the Excel cell.

Microsoft Excel makes it easier than ever, as it provides a feature using which you can quickly add a diagonal line to a cell. Unfortunately, no such feature is available in Google Sheets as of now.

Highlight the cells you want to put a border around in your Excel spreadsheet. Alternatively, you can select all of the cells in the spreadsheet by clicking the button with the arrow pointing to ...