Since you have already paid for online, you should call Customer Service and ask them to place a free download of the Desktop product in your account, along with any state you need. You can then download and install them. You can also ask them to help you put your online file on your desktop so you can open it with the Desktop product once you have installed both federal and state programs. Contact them here.:
https://ttlc.intuit.com/replies/3300041