The steps are as follows:

1. Find "Settings" in the main interface, and then click Open.

2. After opening the settings, drop down to find "Notes" and click Open.

3. Then click Open Note. In this interface, you can see a "font size" at the top. Click to open it.

4. Then an interface will pop up at the bottom of the window for us to choose a font.

5. We can choose the font size test. After we select "Super Large", click OK to open the post-it note setting interface, and see that our current font status is super large.