At first, login to your cPanel and click on File Manager.
![](https://www.question2answer.org/qa/?qa=blob&qa_blobid=5567800462264872230)
Then, File manager will appear. After appearing file manager, you’ve to click/go to your root file (public_html). Then click on Upload button.
![](https://www.question2answer.org/qa/?qa=blob&qa_blobid=9316374026644572370)
At last, upload ads.txt file to your site.
![](https://www.question2answer.org/qa/?qa=blob&qa_blobid=7367732977765674073)
Hope you understand. Thank you!