Export-VcXml will export the internal Redistributable manifests if you want to store an external copy or edit them to create custom versions. Both the supported and unsupported Redistributable manifests can be exported to a specified file in XML format.
Export the manifest of supported Redistributables:
Export-VcXml -Path .\VcRedists.xml
Export the manifest of all supported and unsupported Redistributables:
Export-VcXml -Path .\VcRedists.xml -Export All