In Excel 2019 or later version, you can insert icons to the worksheet. Please follow steps below for details.
Step 1: Click anywhere in the worksheet;
Step 2: Click the "Insert" Tab from the ribbon;
Step 3: Click "Icons" in the "Illustrations" section;
Step 4: Select icons from the "Insert Icons" window;
Step 5: Click "Insert" at the bottom. The icons will appear in the worksheet.