Please find the attached file.
How can I use data extraction to create a table containing data such that I can use it in Surfer to calculate volumes of cuts and fills?
What version or vertical "flavor" of AutoCAD was used to produce this DWG? (As a user of "plain" AutoCAD 2013, without the original application or an enabler all I can see are Proxy objects.)
You might receive better help by posting your question in a forum focused on that specific product.
In AutoCAD you can try the command: EATTEXT. From there you can choose which elements to extract and what attributes tyo be extracted. The last step you can choose what dataformat to save the extracted information (CSV, EXCELL etc.).
Hope that helps, good luck,
Start with some of our most frequented solutions or visit the Installation and Licensing Forum to get help installing your software.