From Office Application (Word, PowerPoint, Excel)
1. Select File > Save As > OneDrive.
2. Select Enter file name here and type a name.
3. If you want to save to another folder, select Browse, and select the folder you want.
4. Select Save.
The next time you open the Office app, you'll see your saved file in the Recent list.
Saving Files Manually
1. Open File Explorer.
2. Select OneDrive on the left side. You can create files and folders and also copy files to it, just like you do everywhere else on your computer.