Instead of just relying on Winrunner result and if you are in need of extra resulting, you can use this reporting mechanisum.
Here it gives you an option of 2 types of reporting mechanisum
1) Excel based
2) XML based
You can download the utility from the path below
Once you download you will find a ppt file explaning the different functions available during this reporting and also the usage of the same.
In case of questions, please contact me.