On my spreadsheet application, with its own UTI, I wrote a Spotlight importer plugin.
It works well, except that Spotlight group the found files as "Other" and not as "Spreadsheet". My UTI conforms to public.spreadsheet. Any idea?
Is there a special kMDxxx key/value to set for that in the importer?(see: https://developer.apple.com/library/archive/documentation/CoreServices/Reference/MetadataAttributesRef/Reference/CommonAttrs.html ) Thanks!