Accessing these files directly is not recommended, especially if you are "Manipulating" the data. I used to have the actual structures, but I can't find them.

I highly recommend that you have your program telnet into the admin port, and use tedit instead.

Hi, I am trying to write some BASIC programs (for Sysop use only) that perform various manipulations of the game DAT files that are not included in the Game Editors. There are a couple of items that I can't seem to find. In particular:
The location of the bytes that specify ownership of Sector figs and mines. I have analysed the structure of the twsect.dat file, and have found the bytes for the quantity of sector figs, and whether they are Defensive, Toll, or Offensive, but have not been able to figure out where in the DAT files the Ownership of sector figs is defined. I have some long running 30K sector games that are becoming more and more cluttered with Rogue Mercenary (abandoned) figs, and would like to create a basic program that switches ownership of these figs to a Player or a Corp. But there's thousands of sectors with these abandoned Rogue figs, too many to manually change them one at a time with the Editor.

I have looked around the Internet for some documentation of the game's DAT file structures, but the only such info I have found is for very old versions of the game that obviously don't apply to TWGS v 3.34b which I am running. Thanks!