The asterisk in excel is entered in the Insert-Symbol menu, and the specific insertion method is as follows (taking excel20 13 of windows 10 system as an example):

1. Open the excel document and click the Insert button at the top of the interface.

2. In the interface that opens later, click the symbol button on the right.

3. In the next pop-up dialog box, select the font drop-down menu as "Wingdings".

4. Then find the asterisk below the font change and double-click Insert.

5. Close the dialog box, and then you will see that the asterisk has been inserted.