Type GEOMAP in the command line, and see if it lets you add an aerial map or image to the drawing. If so, you're in luck, and somewhere on your status bar on the bottom should indicate your coordinate system. After that, a quick google should be able to convert that to whatever system you need. If it says there is no coordinate system defined, you're less lucky, or....MUCH less lucky. How do you know if you're less lucky or in serious trouble? Well, what are the coordinate boundaries in AutoCAD of your map? Depending on whether you're using metric or imperial, it may vary. But for metric, you'll usually see a 6 digit X and 7 digit Y coordinate for most standard coordinate systems that cover much of North America (I'm assuming that's where your site is, correct me if I'm wrong). For imperial, it's 7 for X, 8 for Y (IIRC, haven't worked on imperial drawings in a few years). If that seems to match up when your UCS is set to world, then you can likely deduce what coordinate system it is somehow, or go through some trial and error. If there is a 0,0 it's probably in some sort of local coordinate, so you're going to have to do a lot of work to figure out where it is (if it's even plausible). And even if it is, there will definitely be some discrepancies. I know people who have worked in drafting who are the opposite of new to this, and unless they worked in a discipline that had them dealing with georeferenced survey info or, more recently, working closely with a GIS team, this stuff is complicated. More on reddit.com

Bottom right corner click the options tab ( 3 bars) should be able to select from there. More on reddit.com

Inside AutoCAD. I’m not sure. But you can import the text from the command line and replace characters to end op with file that can be a CSV. That being said the internet is full of random lisp routines as well if you are doing this often. https://www.cadforum.cz/en/simple-export-of-vertex-coordinates... More on reddit.com

You will want to use the DATAEXTRACTION command. More on reddit.com