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To be published and useful as open data, it need to become "usable" structured and machine readable as there will be the Data Consumer - user, who will search, filter or classify your data, or even develop some new application working with this data.
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Between your initial state of the art (mostly the "not too structured" dump of documents, tables, records,...) and the final form of searchable, well ordered, user friendly datafiles, there are some well defined procedures procedures to be realised in ODN.
To publish your data as Open Datasets you will then follow publication path (if
If you already know what to do, follow to section How to ...?).