How Do you remove cargo lens cover?

Trying to replace the bulbs in the rear cargo lights, but I can't get the covers off. How are they attached? Sorry if this isa repeat question, but I searched and could not find an answer

This is from memory, but I think it is correct:  pinch the sides together, then pull out the squared bottom end.  Then the rounded end of the lense should slide out (there is a tab).  Smart move to ask as they sometimes are brittle and break easy.  They are also hard to find.

Tom

That's why i asked, seems like everybody wants them but nobody has them.   

Many of us have extras, just in case. Often, not enough extras to pass around. I grab them every time I find them at the U Pull It...

I have a couple of driver's side lenses, but no extra passenger's side.