how can i accomplish the subject mentioned above. help!
Emulate a USB keyboard
If your PC is running Windows, you can use Gobetwino to write serial data from the Arduino to a file. I think this is primarily intended for text files and 'any word processor' could involve writing to binary files - I don't know whether Gobetwino would support that. But, given that almost all word processors can handle plain text files, that is probably good enough for you.
Any terminal programme can do this. RealTerm is one of several freebies you can use. You send the same data directly to a text file. The difference is that you can then save it to a wordprocessor. I don't know if you can send it directly to a wordprocessor but you can send it directly to Excel, which is perhaps a better way to go anyway. This is done with PLX-DAQ.
