You don't open, you copy&paste via the clipboard. Savintg a formatted text file is merely meant for backup or using it with some plug-ins that parse the file directly. Please read the online help and the help document that comes with mocha again regarding mocha to AE workflows or study the tutorials on the Imagineer Systems website. You are realyl going about this the wrong way. And your CS4/CS5 export is the third option, but if you did not instruct mocha to figure in motionblur, the results will not be different from the CS3 one, so it realyl doesn't matetr which one you use.