I need a 3 D plot which update continiously with some time delay, in order to observe the movement of the point in 3 D plane as well as the pah it is following. The datas are stored in a txt file in the format shown below.
There should be lots of examples and documents online that will help you get familiar with using the 3D graph in LabVIEW. You could start here or here. You can also search for 3D in the Example Finder (from LabVIEW: Help >> Find Examples) for plenty of examples that will help.