I'm not very familiar with Biomedical measurements, nevertheless, acquiring, displaying and saving data to files are very easy tasks using LabVIEW.
I attach an example that generates 2 sine waves of frequencies 10 and 50 Hz, display these 2 waves in a graph and save data to a file (called C:\temp\data.xls)
As you'll notice, you can open this file in MS Excel since I've been using a tab delimited ASCII format.
It should be very easy to modify this example to adapt it to your data acquisition application.
In order ro re-use the same front-end to display previously acquired data, some modifications will be needed - Basically, you will need to open the file, read it (entirely or by chunks) and send the info to a graph.
I hope this will help you
getting started !
Sincerely
Gerald
