This folder is used to store ISO19139 metadata files (XML). Metadata is essential for describing and providing context to your data. By keeping metadata files, you can ensure that your data is properly documented, discoverable, and reusable.
ckan2pycsw save your ISO19139 metadata files in this folder. Each file should correspond to a dataset or resource that you want to describe. The filename should be descriptive and unique to the dataset or resource.