Source files of the SPDX License List are located at https://github.com/spdx/license-list-XML

Output files, available as various formats, are generated with the SPDX tools (https://github.com/spdx/tools)
and are available at https://github.com/spdx/license-list-data

    git clone https://github.com/spdx/license-list-data
    mkdir nodes
    source convert.py