Please follow the steps below to adjust the rows to a fixed height:
Step 1: Click the row header to select the whole row;
Step 2: Right-click to select "Row Height" from the list;
Step 3: In the box, enter the row height number, e.g., 20;
Step 4: Click "OK" at the bottom.
Alternatively, please use the commands in the ribbon:
Step 1: Select rows that you want to adjust the row height;
Step 2: Click the "Home" tab from the ribbon;
Step 3: Click "Format" in the Cells area, and select the "Row Height" from the drop-down list;
Step 4: Enter the row height number in the box, e.g., 20;
Step 5: Click "OK" at the bottom.