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![Are You Trendy ? (Part 3)](https://chandoo.org/img/g/excel-trend-analysis-and-forecasts-part-3.png)
In the final post of the Are You Trendy? series we will look at the use of Excel Charts and associated Trendlines for trend analysis and I will give you a free tool (Normally valued at $200, I wish) which will allow interactive assessment of a Charts Trendline Y value for any X value.
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