1. First open Excel and open the tab bar in the upper left corner of the file.
2. Go to Options at the bottom.
3. Next, find the add-in, and then find the analysis tool library in the add-in.
4. Then click "Start" at the bottom.
5. Check the "Analysis Tool Library" in the interface and confirm.
6. Then you can find the "Data Analysis" option under the "Data" column in the top toolbar.
7. Click Open. There are many simple data analysis functions here. Click the function you want to use, and then use it as needed.