QlikView creates a number of log files and XML files. From project folders through to reload logs and QMC schedules. Perhaps unsurprisingly the best tool to consume these files is QlikView itself.
This application loads the structure files that QlikView allows you to extract based on the data model of the currently open app. It then gives a few simple ways of viewing that information.
There is an accompanying blog post describing the ways that you can use the structure files created by QlikView, and apps such as this to quickly get a handle on a new data source and work out a plan of attack to analyse it.