Once you create them, you can save them as a Microsoft Office file to your computer and Microsoft Office, Open Office, Libre Office and Kingsoft can open them and edit them. You need to have a Google account, like Gmail to use Google Drive. You can also do Google Drive and it has similar programs, like Microsoft Office. Open Office, Libre Office and Kingsoft can open them and edit them. Once you create them online, you can save them to your computer.

What you can do for free is use the Microsoft Office programs online in OneDrive, but you need to have a Microsoft account, like Hotmail. For example, Microsoft Office and Kingsoft are the only ones that allow you to save as a Video using PowerPoint and Kingsoft calls it Presentation. Kingsoft has almost the same features as Microsoft Office. Open Office and Libre Office doesn’t have the same features as Microsoft Office. The free ones are Open Office, Libre Office, and Kingsoft. There are some similar programs that are free. I still use it when I am retired, but I don't have it on my new Computer. I have used it a long time, because I started it when I was working.

Microsoft Office has a lot of good programs, but you have to pay for it.

Ninite open office