Please contact Netathlon regarding specific questions about their software: 

http://www.fitcentric.com/html/fitcentric_products.htm

How to Import Netathlon files to WKO+: 

1) Download the "a-na-lyser" application from:

www.tacx-video.com/Downloads/A_NA_lyser.exe

2) Open the Options menu in the "a-na-lyser" application and click on Default directories, then set your default folders...import ".raw" files from NA2 .raw folder. Also, set a folder to export your ".hrm" files to, which is important.  This application exports the files as polar ".hrm" files.

3) Open the ".raw" file in a-na-lyser and click the export button. There is no visual to the export, but you will now find the ".hrm" file in the designated folder if you look there.

4) Open WKO+ and drag the file to your open calendar page.  WKO+ can now read the ".hrm" file and the data is added to the calendar.