Can't see .PKM files on my mac or Pokemon Selector after saving

[swagata]

I use PokeGen on a mac. I have winebottler and x11. The program itself works great, I get everything done, and then I save the file.
Then comes the problem. I tried saving the file to my desktop, and then a different folder, but I could never actually see / find the file anywhere. When I went to the Pokemon Selector website, I couldn't find it either.
What can I do to fix this so the files show up after saving? Thanks in advance

[Kaphotics]

save it with the correct extention (ie .pkm)