I need to know if I create an album in Premiere Photoshop, why can't I import it into Premiere Elements? A message comes up with "this type of file is not supported, or the required codec is not installed" Can I install the correct codec? and from where and how?
Hope someone can help
A PSE file is, as you say, Photoshop Elements project file. It is not a photo or graphic file.
If you want to use the file in Premiere Elements, you need to turn it into a Photoshop file (PSD) or any of the other graphics formats (TIF, JPG, PNG, GIF, etc.).
Welcome to the forum.
As Steve G. points out, the PSE file is the PSE Project file, and basically an XML database. This ARTICLE, while addressing PREL (Premiere Elements Project files) will give you some background on Project files in general.