Select the row or rows you want to delete
Right-click the selected row number
Click Delete
Or press Ctrl + –
Choose Entire row if prompted
Click OK
To delete multiple non-adjacent rows, hold Ctrl and select each row number
To delete blank lines, use Find & Select, then Go To Special, then Blanks
After selecting the blank cells, right-click and choose Delete
Choose Entire row to remove the full blank lines
To delete lines in a cell, select the cell and press Alt + Enter to edit, then remove the line break
To delete rows using the ribbon, go to Home, then Delete, then Delete Sheet Rows
To delete all selected rows at once, highlight the rows first, then delete
To undo a deletion, press Ctrl + Z