If you like the classic interface, WPS can also change the skin. You can directly change the skin of the classic interface.
Step 1: Select the skin logo in the upper right corner.
Step 2: Select my skin → Classic skin.
Step 3: Restart WPS office, you can see the classic office interface, or you can use the online template of docer.
If you want to change back to 20 13 skin, click on the clothing logo and repeat two or three steps (but the skin option should be changed to 20 13 skin).
If you are satisfied with the answer, please adopt me as the satisfactory answer.