Sparklines represent little, word-like graphics which can depict intense information in a short space. Until now, third party utilities existed which could be used to create sparklines in Excel 2000-2007. Now, Microsoft has decided to implement sparklines natively in the new Microsoft Excel 2010.
Here is an example of a sparkline table:
Below you will find the most valuable resources in the little world of sparklines!
Third Party Sparkline Utilities: (working with Excel 2000-2010)
Microsoft Excel Sparklines (working with Excel 2010)
Note: A workbook containing sparklines will show blank cells when opened in Excel 2007 or 2003.