Discuss formulas, functions and VBA (Visual Basic for Applications). I have useful formulas posted at ExcelJedi.blogspot.com and encourage users to try other ways of working with data, such as: GoogleSheets,Tableau, SAS,d3,Python,MatLab, R,C,C++,C#,F#, SQL,noSQL,Haskell
At our monthly Excel meetup, you may hear of references to online resources, like www.bettersolutions.com Afterwards share with other members, regarding other data tools, like: Google Fusion Tables, Big Query, Microsoft Access, FileMaker for Mac, MySQL, Postgres, Alpha Five which specializes in internet ready imports/exports.
Also discuss Comma Separated Value problems here. Sometimes these files are opened and interpreted poorly due to the General Format setting in most spreadsheets. Visit the group to learn work-arounds to various CSV problems.