Backup coworker's iphone to my computer so that files can be used on Mac.
A coworker has resigned and I am to take over most of their work for the time being. This includes getting copies of their files off of their iPhone before it is wiped and reassigned to another worker. Files include Voice Memos, Notes, phone book, Numbers files, and some photos. Though I need access to this information on my computer, it would be a very bad thing if their stuff and my stuff got mixed together.
I have searched both here on apple.com and on the broader internet for the best way to do this, and I don't find anything that really addresses this in a way that makes me confident that it will turn out right.
I am very grateful for any advice you can give...even if it's not the whole solution, but just one part! Anything to get me started in the right direction.
P.S. Work doesn't allow use of the Cloud, so I'm connecting by cable to my Mac.
MacBook Air 13″, macOS 10.14