Premiere Elements 13 on Windows 10....
What did you save -
a. Saved the Timeline content as a project file (.prel) which by default gets saved to Documents/Adobe/Premiere Elements/13.0
b. Publish+Share/Computer/....and some other save to movie file opportunity.
Assuming that this was a project file that you saved to the computer, how are you opening the project file (.prel)
a. going to the file in Documents, right clicking it, and selecting Open with Premiere Elements 13
b. opening the program to the Expert workspace, and then File Menu/Open Project
c. Welcome Screen/Video Editor, Open Project
Please consider and supply more details.