Do you want to open documents in other apps with Kingsoft PPT Free? This is pretty easy and can be done with just a long press! Let's take the attachments in an email for an example.
Step 1: After downloading the attachment, choose the app to open the attached PPT with a long press.
Step 2: A list of apps that can open the PPT will pop out. Choose the icon "Open it in Kingsoft PPT Free".
Step 3: You can view your PPT as is shown below.