UPDATE: In the comments, Vladimir suggests a better way to do this: use the scntoc. That way, the scene will always open at frame 1.
Use a text editor to add Application.SetValue(“PlayControl.Current”, 1) to the onload script. This script will run when you open the scene, and move the timeline pointer back to frame 1 to avoid the re-simulation.

   <PostLoadScript>
      <Language>Python</Language>
      <Function>postLoad</Function>
      <Script_Content>
	<![CDATA[
Application.SetValue("PlayControl.Current", 1)
	]]></Script_Content>
   </PostLoadScript>

After you save the scene, Softimage will write out the scntoc without the CDATA section (Softimage will replace special characters like < and ” with entities).

   <PostLoadScript>
      <Language>Python</Language>
      <Function></Function>
      <Script_Content>
	
Application.SetValue(&quot;PlayControl.Current&quot;, 1)</Script_Content>
   </PostLoadScript>

So you have a heavy simulation, and you saved the scene with the timeline pointer at frame 1000. Now when you open the scene, you have to sit and wait while the scene re-simulates.

You can fix this by using xsibatch to move the timeline pointer back to frame 1.

It’s probably a good idea to save heavy sim scenes with the timeline pointer at frame 1 😉

• Save this JScript in a .js file.

  var sScene = "C:\\Users\\blairs\\Support\\Scenes\\Test.scn"
  OpenScene(sScene, null, null);
  SetValue("PlayControl.Current", 1, null);
  SaveScene();
  

• In a command prompt, use xsibatch -processing -script to run the script:

  xsibatch -processing -script C:\Users\blairs\Documents\resetPlayControlCurrent.js
  

Now you can open your scene without it resimulating.