In Word, go to File on the menu bar and choose Save As.
In the Save As dialog box, choose On My Mac or On My Computer, if necessary.
Navigate to and select a storage location in your computer. When finished, click Save.
Click File in the Word Online menu bar.
Go to Create a Copy and select Download a copy.
When prompted, click the Download a copy button.
Navigate to and select a storage location in your computer. When finished, click Save.