Hello,
I am not familiar with the 370A, but it looks like it is connected via GPIB. If you can communicate with it, then you can probably read the values off of it. To figure out the commands, they are probably in the manual. As for the excel, there are two main options. The first is to save all of the files as comma seperated values and write usign the Write to Spreadsheet file. (you could also use another delimeter other than commas) The other option is to use the Report Generation Toolkit to write directly into Excel.
Does this help?