Sometimes I add some supporting docs to notes (ie. txt, docx, xlsx, etc…) and I know that content text is readily available to index, I can’t imagine it would be any more intense than indexing PDF content. But, it would be AWSOME to be able to find notes by searching some text within those docs.
Well, docx and xlsx are compressed formats and the process of extracting the content might be a little more intense. Also, no standard APIs are provided for the Office formats and we have to write this ourselves or rely on unofficial libraries. But yes, eventually we can consider expanding the attachment search to other formats.