# Heatmap Tool

This directory contains a standalone web application for visualizing data from XLSX files as a heatmap on a map of Germany.

## Description

The application allows users to upload an XLSX file containing German postal codes (PLZ). It then aggregates the data by postal code and displays it as a heatmap, where the color and size of the markers represent the density of records. The tool automatically detects other columns in the file and creates dynamic filters, allowing users to slice the data and visualize different segments.

## Getting Started

To run the application, navigate to the `heatmap-tool` directory and follow the instructions in its `README.md` file.

```bash
cd heatmap-tool
```
Then follow the instructions in `heatmap-tool/README.md`.