Read data in real time and save as an excel file

Hi,
I want to write a LabVIEW progarmme which able to read data in real time and save it as an excel file from Varian Vacuum muli-gauge.
It is using RS232 port.
Can anyone give me some examples or point me in the right direction?
I am a beginner of LabVIEW. Hope anyone can help me.
Thank you very much!!
Joanne

Thanks for your reply.
I just use MAX to verify that the rs232 port is operational.
However, there is an error (please refer to the attachment).
One possible reason is in MAX I am trying to do the default command *idn? ...but it doesn't work.
I read the vacuum multi-gauge manual but I don't know which command should I use...
I attached the manual and can you tell me which command should I use?
Or can you tell me other possible reason for this error code?
Thank you very much.
Joan
Attachments:
Varian Multi-Gauge Controller.pdf ‏2747 KB
error1.JPG ‏111 KB

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