I recently saved a psd file at home on Photoshop CC 2017. I then went to class where the most recent version of Photoshop we have is 2015. It will not allow me to open that psd file on Photoshop CC 2015 and gives me an error similar to "File not compatible with this version of Photoshop". I was wondering if there was a way I could convert this psd file to something that would make it work on Photoshop CC 2015? Any solutions are greatly appreciated.