Having a problem moving a file

Hi...

I'm a spotty Corel user, trying to get back into it.  Using CD11, I have created a black and white graphic image that I'd like to open in my iMac using Photoshop.  I select the image and have tried exporting as a TIF, publishing as a PDF, and I'm saving to a USB stick.  The files are listed, but when I try to open them in PS, they are blank?  I must be doing something wrong here.  Maybe I'm screwing up the eject on the Windows machine with Corel? It says save all the files and continue... I've already saved this file so why am I not seeing anything on my iMac screen?

Its probably obvious to a daily windows/corel user... but I'm lost.

TIA for the help!

 

Mike