Default [Q] How do i access files from Root Explorer on my Laptop?

Hey everyone @crpalmer tagged you in case you could help

I am running Jrummy's Root explorer on the phone searching for some pictures on Dropbox.
I FINALLY found them in the /Mnt/sdcard/Android/data/... but i can't figure out where to copy and paste these imgs to so that my computer can 'see' them.
When i plug the tablet into the computer all that comes up is Internal Storage with 9 GB available and inside that i have only bare files like Alarms Android etc. But NONE of the folders have any of the phones files.
Basically i can't see anything on my tablet through my computer.
I tried pasting the file on System/root but the computer still doesn't show it!

Regards
Silkmeister1

UPDATE: i managed to stick a TINY 1 mb sd i had laying around and that changes things to where my i could copy things to the sd card and the computer sees that, but now the issue is the .jpg won't open correctly as they are too large or corrupted

wondering if this is a permissions issue
{--Your R00t are belong to us--}
DEVICES:
Tablet SAMSUNG Galaxy Tab Pro 8.4 Wifi
Rom:Crpalmer's Official CM11, CFauto-rooted TWRP 2.7.1.0mondrianwifixx
Phone:Droid 3 {unlocked by Verizon}
Rom:Chevycam's Steel Droid V5.6 WORKING camera + GSM data*test device*
Phone:Samsung Wave S8500
Rom: Dual Boot, Volk204 CM10.2.1 + Bada 2.0 *Daily Driver*
Phone: OG Droid 1
Rom: Liquid Smooth V3.2 with Latest Chevycam Kernel (overclocked 1000mhz) *Current Alarm clock, test device*
hit the thanks?