Sparklines
TinyGraphs v.1.0
TinyGraphs is an open source Excel add-in that creates sparklines, mini column graphs, and area graphs from a row of data.
Chanalyzer Lite v.2.0.6.407
The visualizations Chanalyzer provides are aligned by frequency to help the newest of users understand spectrum analysis. Whether you're flying RC planes or installing a home theater, Chanalyzer has the features you need to get the job done.