The data transformation tools in QlikView are amazing. When I think of the hours I have spent working with data that was output by some system trying to get that data into a format that I could then START modeling. Oh, the wasted man hours.
One of the QlikView transformation tools has the ability to take a crosstable (like a pivot table in Excel) and convert it into a straight table; a traditional flat table where data typically starts.
The only problem with this tool is that it converts all of the data in the crosstable into straight text. This means that even if you see data that looks like a date (ex: 11/25/2015), it is really just a collection of numbers and slashes. QlikView does not understand what these numbers represent. This makes modeling the data a bit problematic.