This is data and support files for the paper Gaia Early Data Release 3: The Gaia Catalogue of Nearby Stars Gaia collaboration, R.L. Smart et al. A&A 2020. In the Original directory are all the original data files as tables in .fits format. The variables are explained in the paper and the file ReadMe which was provided to the CDS where the data was made available. In the Updates directory we will make available updated catalogs as the project continues. In the Extra directory are extra value files. Columns not originally provided with the datasets that have been requested. In the The10pcSample directory is a catlogue of objects within 10pc being compiled by Celine Reyle. In the FAQ.txt are any frequently (that is more than once) asked questions about the GCNS material.