First, download the THETA app for computer from the RICOH THETA website.
https://support.theta360.com/en/download/
Both 360-degree videos and still images can be viewed on the THETA app for PC.
(1) Connect THETA and your PC with a USB cable.
(2) Start the THETA app on your PC, and drag and drop the THETA images you wish to view into the app.
3) Click either “>” on the bottom right of the screen or “<” on the bottom left of the screen to view the images in the folder.