I only use Excel in basic way.

My partner who has an engineering and also master's in business degrees, does incredible stuff in Excel. Like I mean embedded algebraic equations that would do automatic calculations across 200 columns/cells. Complex spreadsheets. Interrelated formulae across multiple spreadsheets.

when I worked for an engineering firm I saw the same tendencies in all the engineers,..very Excel spreadsheet driven. They also created form templates with logos...which one could have more easily used Microsoft Word.

I am a relational database software person, not Excel...I can tell you all about designing databases with metadata fields, repeating fields, unlimited character length, nested searching, etc.