Create a comprehensive information dashboard for a retail company using Excel. The dashboard should visualize the company's sales data over the past year, including monthly sales figures, product category performance, and regional sales distribution. Your dashboard should include the following features:

$$ At least three different types of charts or graphs $($e$.$g$.,$ line chart, bar chart, pie chart$)$ to represent the data.

$$ Key performance indicators $($KPIs$)$ that are relevant to the retail industry.

$$ Contextual metadata, such as data sources and last updated date.

$$ Alerts$/$exceptions prioritization to highlight critical issues.

$$ Space for business$-$user comments to add context to the data.