Sometimes in programs like Excel when you can’t find a shape that you want, a possible workaround is to use a font. Webdings and Wingdings offer shape-based fonts, so you get shapes instead of the usual characters. For instance, if you want to get a tick in Excel, you can use the “a” character of the Webdings font. To do so, just select the Webdings font (as opposed to Arial or some other conventional font), and type “a” like how you’d normally do so, and you should see a tick appear 🙂
You can also hold down the alt key and type 251 to insert a check mark.