Where exactly the VP captured data is stored and in what format ?
Suppose I want to change the Baseline data later in the testing phase then how to do this?
in the left of the main robot window double click the vp you want to change and edit the data there. you can then save.
VPs are stored in "<project DIR>\TestDatastore\DefaultTestScriptDatastore\T MS_Scripts\vp\", but I think that recono1's answer is probably what you were looking for.
If you want to give somebody a fish, you'll do better if you teach him how to catch it.