FRIENDLY USER DATA

Working with raw data is one of the most frequent causes of Spreadsheet Hell. We can work for hours sorting and summarizing and massaging and consolidating that data, working to sift ounces of insight from mountains of chaos.
Worse, if we do a really good job The Boss will want us to prepare an updated version at the first opportunity.
From The Boss's point of view, however, there are at least two significant concerns. One of these is efficiency. It takes a long time to manufacture those reports. And The Boss knows that we have many additional things to do.
The other concern is accuracy. The Boss knows how inherently inaccurate spreadsheet reports can be when we manufacture them from raw data. Not only is this process prone to many errors, there's often no way to reconcile the results with an ultimate truth. We therefore have no practical way to know whether our results are accurate.