move one drive files to icloud

You could do this using a macOS device using the following steps:

1. Go to https://onedrive.live.com/ & sign in to your account. If you don't have an account, then create one.
2. Download & Install "OneDrive Application" on your Mac. It creates a folder on your systems hard disk. The folder is named "OneDrive".
3. Go to https://www.icloud.com/ & sign in to your account. If you don't have an account, then create one.
4. Open "Finder Window" on your Mac.
5. Click "iCloud Drive" located left side under the Favorites section.
6. You can create a folder on your iCloud Drive to save migrated photos and videos.
7. Open another "Finder Window" on your Mac.
8. Navigate to your "OneDrive Files".
9. Once you have opened OneDrive Files, copy the file or folder from OneDrive and paste them on iCloud Drive's Folder.