[Gimp-user] How to retouch a psd file with gimp?

[Cécile Barbe <cclbarbe gmail com>]

Hello, 
I'd like to open a psd fils while keeping the different layers in order to modify one of them.
How can i do it?
When I try, it says there is a p with cymk colors.
I trird with image magix, ut it flattens the image!
Cécile