Cross-tabs deliver data in a familiar spreadsheet format. They also summarize both vertically and horizontally, have a grid format, and can change size depending on the data.
Several of the most compelling reasons for using cross-tabs are
Making better use of space
Leveraging experience with the spreadsheet format
Because cross-tabs are grouped and summarized both vertically and horizontally, they are incredibly efficient at saving space as compared to a typical grouping report. They are very good at showing key information if the information required has at least two levels of grouping.
Let's look at an example: school grades for the end of the year. These need to be grouped by course, ...