Has anyone ever flipped sliding glass doors I would like to open them in the other direction
Depends on the door, but this shouldn't be a problem for someone who knows what they're doing. Can't really be any more specific without seeing the door itself to know whether or not your question is possible. Best thing to do is get a qualified tradesman to look at it for you. Call a general contractor or a specialty door company.
It depends on the door. Some can be flipped, some can't. I'm assuming this is a vinyl window unit. (Even though it's called a "door" in principle it's a window.)
If yours can be flipped, you'll need to do the following:
(Note that "top" and "bottom" refer to the current orientation, before flipping everything.)
In the side of the sliding portion of the window near the bottom on each side, there should be an adjustment screw. Turn this screw all the way counterclockwise to retract the rollers. If there are also rollers at the top, retract them, too. Then lift the sliding portion out of the track. Be careful, it's heavy and awkward. You may want help.
The screen will also have rollers which you'll need to retract using the same sort of screws, but they won't actually rise off of the track. Once the rollers are retracted, slide a putty knife under the rollers so you can slide the rollers off the track.