xan is a powerful command line utility designed for seamless processing of CSV files, developed with efficiency in mind. Built in Rust, it can handle large datasets quickly and with minimal memory usage, making it suitable for tasks involving gigabytes of data. The tool supports a variety of operations including previewing, filtering, slicing, aggregating, sorting, and joining CSV files, all performed through an extensive set of composable commands that can be easily chained together.

In addition to basic CSV manipulation, xan features its own expression language tailored for CSV data, enabling users to execute complex tasks with greater speed compared to traditional scripting languages. It also extends its capabilities beyond CSV, supporting various adjacent data formats and conversions to and from JSON, Excel, and more. With visualisation features and utilities related to lexicometry and graph theory, xan is an invaluable tool for data analysis, particularly in social sciences.