I thought ide leave it till tomorrow [now today] to finish it.
I save it as "lt.pie" and PS automatically saved it as a PSD.
About 10 minutes ago I try to open the document and select "lt.pie" and now photoshop seems to think that my PSD is some kind of '.pie' document, and wont let me open it

Is there any way that i can solve this or re-open it as the PSD it is?