Sometimes it's important to duplicate a view-only file into your own workspace. Afterwards you'll be able to fully edit the file and make any changes you like.
One of the reason could be that our support team might share a view-only Figma link with you when you had trouble uploading it yourself.
In order to copy or duplicate the file into your own workspace, simply click on the little chevron next to the "view-only" label and select "Duplicate to your drafts".
The file will now be duplicated into your workspace. If you then click on the "Open" link in the bottom, then the editable Figma file will open.