In my Adobe program Dreamweaver you make changes to your page in Dreamweaver then you open your ftp program and reupload the file from your local folder to the remote folder. When you get the message "overwrite the file?" say yes. To check the file online open your browser and empty the cache. Your changes should be there.
Hello littletcustoms,
The procedure for updating your site depends on the program you created it with. For example, if you are using the Premium Website Builder, you will simply add content normally and then republish the site.
If you are using a program such as WordPress, then each page or post is automatically updated on the live site as you update them.
If you have created the site with simple html files, then you can edit and alter the files via the cPanel File Manager.
Best Regards,
Scott M