I have built some basic test for our production environment BUT if I want to evaluate them over time is exporting them to csv and finding another tool to read them in the best way to see trends over time? has anyone else run into this? What did you do to evaluate the results?
If while running your test you export your data to NeoLoad Web you will be able to get access to some overall Trends statistics for all transactions, all requests with trends response time and count per seconds.
You will also get throughputs and the number of virtual iteraitons passed/failed as trends for all your tests based on the same project.
For more information you can look at that page here and check the Trends in NeoLoad Web section.