Use these articles to learn more
Excel Formula Errors – Understand and Debug Them
at 20 April, 2009
Excel Formulas – Explained in Plain English
at 24 November, 2008
Extracting Unique, Duplicate and Missing Items using Formulas [spreadcheats]
at 6 November, 2008
Sorting Text in Excel using Formulas
at 22 October, 2008
Sorting a list of items in random order in excel – using formulas
at 23 September, 2008
Learn Excel IF Formula – 5 Tricks you Didnt know
at 9 June, 2008
Not so wild lookups [video]
at 12 February, 2016