Sparklines
Sparklines have taken the Reporting and Business Intelligence world by storm – they can turn any numeric report into a high-quality, pixel-perfect and board ready presentation. Here are some we’ve found useful. These are free, subject to the individual licence conditions of each producer.
For Excel/Open Office Power Users
Bissantz
> Download Bissantz Sparkline [Free for PALO]
More Examples [blog]
Sparklines for Excel
> Download from SourceForge [open source]
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tinygraphs
TinyGraphs is an open source Excel add-in that creates sparklines, mini column graphs, and area graphs from rows of data. It generates tiny graphics that are as small as a cell and can be placed next to the items that they describe.
Download tinygraphs [open source]
For Developers and Google Spreadsheet Users
> Google Visualization
JavaScript visualizations built on the Google Visualization API. Some of these are by Google, and some are written by third parties.