I'm stuck in the Drakor Laboratory in archades and how do I get to floor..

It would help to know what floor you are currently on. On The 67th floor you can find the Lab Access Card and a map for the area. There are Bulkhead switchs you can push to open alternate doors. Hit it and then take the lift up to the 68th floor you will need to play with the Bulkhead switches up here as well to get to the lift that takes you to the 70th floor

[66TH FLOOR]

Head west to the north/south corridor to find a bunch of guards.
These are the only "good" kind around. The NPCs around here don't
give much info, so keep heading north to the exit-vator terminal.

[67TH FLOOR]

NOTE: If you plan on getting the collect-all-maps icon in the Sky
Pirate's Den, do not forget to get the map here -- you won't be able
to return to get it.

Head east and up into the northern (only) exit to C.D.B's lab. Go
in, watch the scene, and you'll gain a [LAB ACCESS CARD] and the map
of the entire area. Exit south and look along the western wall (of
same corridor) for access into...

[RM 6704 EAST]

Save point here. You get the familiar warning that you might not be
able to leave, so save in a second slot if you have one, just to be
sure. Exit into the corridor when you're done and head south to the
next room...

[RM 6703 EAST]

You can find bulkhead controls here. Press it to open the blue ones
and conversely close the reds. [67TH FLOOR]

With the blue bulkheads on, you now have access to the elevator once
again; this also allows enemies to come at you, since the elevator
is their source of transportation. You can also go into the western
north/south corridor and enter those rooms, where you can find red
bulkhead controls.

Should you turn those on, you can access the rooms in the SW part,
one of which has treasure chests -- I got two [BALANCE MOTE]s.
When you're ready to go, turn on the blue bulkheads and make for
the elevator, going to the next floor up.

[68TH FLOOR]

The map is still useless, but you can tell the direction you're
going by the way it follows you. Head east and enter "Rm 6803 East"
to turn on the red bulkheads. Exit and loop around counterclockwise
to the other hall flanking the elevator room. Enter "Rm 6804 West"
and turn on the blue bulkheads.

From there, make your way south, heading for the southwesternmost
part of the map. In the horizontal corridor near there, you can
enter "Rm 6811 West" to turn on the red bulkheads. Exit and take
the northern passage flanking Rm 6811 to the east, then exit east
into the other elevator room. Choose Floor 70 as your destination.