[quote user="Rup"]My registered application name is AT_GRP[/quote]
Are you the author of application AT_GRP? Or, do you mean that you have found that app. name in the XData?
If you are not the author, then you must find our more about application AT_GRP and figure out what those strings mean in the context of that application.
To put it another way, unless the author of that application cares to respond to your question (even assuming that he browses the MicroStation Programming Forum), then nobody here can tell you what those data mean.