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// SPDX-License-Identifier: MIT OR Apache-2.0
//
// Copyright 2022-2025, John McNamara, jmcnamara@cpan.org
//! An example of writing a Polar Rust dataframe to an Excel file. This example
//! demonstrates converting strings to urls.
use polars::prelude::*;
use polars_excel_writer::PolarsExcelWriter;
fn main() -> PolarsResult<()> {
// Create a sample dataframe for the example.
let df: DataFrame = df!(
"Site" => &["Rust home", "Crates.io", "Docs.rs", "Polars"],
"Link" => &["https://www.rust-lang.org/",
"https://crates.io/",
"https://docs.rs/",
"https://pola.rs/"],
)?;
// Create a new Excel writer.
let mut excel_writer = PolarsExcelWriter::new();
// Treat a string column as a list of URLs.
excel_writer.enable_column_urls("Link");
// Autofit the output data.
excel_writer.set_autofit(true);
// Write the dataframe to Excel.
excel_writer.write_dataframe(&df)?;
// Save the file to disk.
excel_writer.save("dataframe.xlsx")?;
Ok(())
}