How to become a data crunching wizard using a combination of the Advanced Filter and Regular Expressions in LibreOffice Calc. I originally wrote this article back in January 2016, but is seems that LibreOffice might have changed it's regular expression engine, because a lot of the stuff that worked back then doesn't seem to work now. Therefore I've completely rewritten this … [Read more...] about How To Filter Data In LibreOffice Calc Using The Advanced Filter