Select the worksheet data range (or the entire sheet)
Go to Home > Find & Select > Go To Special
Select Blanks and click OK
Right-click any highlighted cell and choose Delete Rows
Choose Entire row and confirm
If prompted, ensure the correct table/range is selected before deleting
Alternatively: Select the range > Data > Filter
Filter the target columns to show (Blanks) and delete the visible rows
Clear the filter after deleting rows