Superscript is to mark the contents that need more attention or explanation. Please follow steps below to Superscript your contents:
Step 1: Select the contents you need to superscript;
Step 2: Right click to bring up the dialog box, from the list, click "Format Cells";
Step 3: In the "Format Cells" dialog box, check "Superscript".
Step 4: Click "OK" at the bottom.