Your photograph files are probably located in Pictures.
To go to Pictures, do the following.
1) Press Cmd + n to open a Finder window.
Pictures is located in the bottom half of the sidebar on the left side of the Finder window.
2) Double click Pictures, and browse to the desired photograph file.
Your photograph files may be in folder that has the name of your camera manufacturer, in folders with years as titles, or ?
If you're photograph files are on a CD, DVD, or USB flash drive, do the following.
1) Press Cmd + n to open a Finder window.
2) Look for the icon for the CD, DVD, or USB flash drive.
The icon is in the top half of the sidebar on the left side of the Finder window.
3) Double click the icon, and browse to the desired photograph file.
Do the following to open a photograph file.
1) Open Photoshop Elements.
2) Click the yellow folder near the top of the screen, or press Cmd + o, or go to File > Open.
A Finder window will open.
3) Double click Pictures if your photograph file is on the hard drive.
Or, if it's not on the hard drive, double click the icon for the CD, DVD, or USB flash drive.
4) Browse to the photograph file.
5) Select the photograph file.
6) Click Open in the bottom-right corner of the Finder window.
When you double click a photograph file, your computer is set to use a certain program to open the file.
This default setting isn't Photoshop Elements.
If you'd like to open photographs in Photoshop Elements, go to Open With.