Which tool you will use to join some cells and place the content at the middle of joined cell?

To join some cells and place the content at the middle of the joined cell in MS Excel, you need to use the "Merge and Center" feature. This can be done by selecting the cells you want to merge, then going to the Format Cells dialog box. Within this dialog box, you'll find the option to Merge and Center. By choosing this option, the selected cells will be merged into one and the content will be placed at the middle of the merged cell. This ensures a visually appealing layout for your data.