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How to Make and Edit 3DO Files for NASCAR Racing 3

In "NASCAR Racing 3," a computer game originally released by Papyrus Design Group and Sierra Entertainment in October 1999, you can customize many different aspects of the game, one of which includes the game's 3DO files. The game's 3DO files are the core files in which you can create and modify your own tracks on which to play in the game. There is only one set of executable files which will allow this process to occur.

Instructions

- 1
  Download the three executable files SG2TRK.exe, TRK23D.exe and 3D23DO.exe from your desired location, such as Cart Racing Headquarters (see References).
- 2
  Click "Start" and type "CMD" into the field. Press "Enter" to open the command prompt. In the field, type in the following command, replacing "x" with the name of the track file you want to modify: sg2trk.exe -radtoler 1800 -arcangle 140 x.sg
- 3
  Type in the following command, replacing "x" with the name of the same file: trk23d.exe -am -w -nosf - sandtex x.trk
- 4
  Type in the following command, replacing "x" with the name of the same file: 3d23d0.exe x.3d
- 5
  Close the command prompt and load your desired 3DO modifying program, such as 3DOED or 3DO Editing Tools. Modify your tracks as desired with the in-program options. Click "File" and "Save" to save your changes.

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