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In this tutorial, the presenter focuses on forecasting sales using Excel's statistical package, specifically the regression model, to address a business problem involving seasonality and trend. The scenario includes sales data over three years, illustrating a consistent upward trend alongside seasonal variations. The goal is to predict sales for January to December 2018. To achieve this, the regression model will incorporate dummy variables for each month. The presenter suggests that viewers should solidify their Excel skills before advancing to tools like Python and R. It's also advised to seek additional information online for concepts that may not be fully explained in the tutorial to enhance understanding in analytics.