coordinates

I have a drawing that I can no longer see or retrieve, the coordinates are huge #'s .I would like to find out how to change the coordinates.

You could create a new UCS, set the origin closer to the work area, coordinates will be smaller. Unless your work area is the solar system.

Not sure how you would do this this if you can't see or retrieve your drawing.

Look for two pixel dots when you zoom extents one will be your objects the other something drawn at the wrong co-ords zoom in on the dots erase the wrong objects or move them closer to the other objects.

You can also set drawing limits "limits" and use zoom All not extents

Something that might be useful following on from BIGAL is to select all (as long as there isn't a huge number of entities so that the grips of the objects show up instead of trying to pick out a few pixels