Build a Data App with Excel, Polars and Python

In this new walkthrough, we explore how to use the blazing-fast Polars dataframe library in a Dash app, featuring a dynamic Excel file uploader, an interactive map, and a fully filterable Dash AG Grid table. You’ll learn how to: ✅ Upload and parse Excel files ✅ Filter and sync table data with the map in real time ✅ Use Polars efficiently inside Dash callbacks This is perfect for anyone looking to move beyond static spreadsheets and toward high-performance, interactive data apps, all in Python. Try it out or start building: https://tinyurl.com/5b88pu48 App Code: https://github.com/plotly/DataframesBenchmark #Python #Dash #Plotly #DataScience #Excel #Polars