Urgent: taking off the rear sliding door

[Mooney's Bay]

I bought sofa and cannot get into door, and trying to get it in from rear sliding door. Can anybody know how to get the sliding door off? It's very urgent. Please help. By the way, it's Minto's house.

Thanks in advance

 

[ccc]

To take it off: lift it up and pull the bottom outward
To put it back: put it into the frame, lift it up and push the bottom inward