Major As raised at http://stackoverflow.com/questions/41272195/onenote-support-for-apache-tika-parsers, we don't have any magic for the OneNote formats. Several years ago we dug out the file format specs (see http://lucene.472066.n3.nabble.com/Tika-OneNote-Support-td4020393.html), but didn't have volunteer energy to implement a parser. However, armed with those specs, we should be able to come up with some mime magic for detection