Hi Julia,

It sounds like you do not have the latest firmware. The most recent firmware saves directly to CSV format. Earlier versions produce a binary file (the .bin) and a conversion program written as a python script (the .py file). If you run the .py file, it will generate a CSV for you. To run a .py file you need to download python, which you can do here:

https://www.python.org/ftp/python/2.7.11/python-2.7.11.msi

Hope this helps,
~James