Intuit Online Document Exchange is a secure online platform that allows accountants and their clients to exchange important documents electronically. It aims to save time and money by providing a fast, secure, and inexpensive way to share files without using paper. The service allows users to set up online document vaults with a simple folder structure to upload and access files from any internet-connected computer. It is currently available for free through a pilot program to help streamline interactions between accountants and their clients.