What is a cross cut sled and how is it used in woodworking?

A crosscut sled is a woodworking tool that helps make precise and accurate cuts on a table saw. It consists of a platform that slides along the saw's fence, allowing the wood to be securely held in place while being cut. This tool is commonly used for making crosscuts, which are cuts made perpendicular to the wood grain, and helps improve safety and accuracy in woodworking projects.