How to Delete Icloud Storage on Mac?

Manage your ICloud Storage

Open the Finder and go to the iCloud Drive folder.
Drag an item to the Trash, or move it to a different folder on your Mac.
Open Trash, then rightclick the files that you want to delete.
Select Delete Immediately. Then click Delete to confirm.

How do I Delete Documents from ICloud Drive?

Open iCloud.com in a browser.
Log in with your Apple ID .
Click "iCloud Drive."
To delete a folder, select it and then click the Delete icon.
To delete files, doubleclick a folder.
Hold down CTRL while clicking each file.
Select the Delete icon.

How do I Remove Files from ICloud Drive but Keep on Mac?

Go to System Preferences /iCloud/iCloud Drive/Options and turn off Documents and Desktop syncing. Check your Documents and Desktop to make sure all your files are there. If you have all your files, you can delete them from iCloud.

How to Disable "iCloud Storage is Full" Messages on OS X

Turn off iCloud Backup.
Free up some space in iCloud.
Turn on Do Not Disturb.
Pay the money to upgrade.