How to transfer Picasa files from my Samsung S5 phone to my Lexar flash drive

A

AC Question

I've looked at various questions and answers on this forum but none seem to answer my problem.

I have transferred most of my Gallery photos/albums onto my Lexar flash drive but there is one album still showing up in the phone Gallery called Picasa (i understand this comes automatically through Google). I have quite a few videos/photos in the Picasa album that I want to transfer but when I connect my phone to my laptop/usb as a media device the Picasa files don't show up anywhere on the SD card or on the Phone card. I've checked in Settings>Applications, Accounts etc but can't see anything about Picasa anywhere.

When I select all the Picasa files in Gallery there is no option to copy or move them. The only option is to run a slideshow!

How can I transfer all the Picasa stuff from the phone onto the flash drive? Is there something I'm missing? I don't want to lose them.

HELP! Thanks.