Question: how to transfer files from oneplus 7 pro to computer?
Answer: Step 1: Launch Syncios Data Transfer >> Connect OnePlus 7 to computer >> Choose 'Backup' function. ... 
Step 2: Select 'Camera Roll' & 'Photo Library' options >> Click 'Next' to launch. ... 
Start to Begin. ... 
Export Photo Folder. ... 
Export Photo File.