Task: I want to use wps  office app to share a presentation file with my mother Bianca.Rossi1967@gmail.com
Steps:
click on the file button op pop up window at bottom of the screen 
choose fourth option ( share as options ) button on pop  up window at bottom of the screen 
choose gmail ( first option ) on pop up window at bottom of the screen to share a file 
choose share as files button on pop up window at bottom of the screen
type Bianca.Rossi1967@gmail.com in top second column of the screen to share a file 
click on thee send button at upper right corner of the screen to share a file