Formulas....

Weeknum to Date
http://www.ozgrid.com/forum/showthread.php?t=56784
Commission Formula
http://www.ozgrid.com/forum/showthread.php?t=56891
Lookup Based on 2 Criteria
http://www.ozgrid.com/forum/showthread.php?t=56835
Lookup
http://www.ozgrid.com/forum/showthread.php?t=56827
2 Dimensional Lookup
http://www.ozgrid.com/forum/showthread.php?t=56964
Sum with Multiple Criteria
http://www.mrexcel.com/board2/viewtopic.php?t=231395
Countif with a Twist
http://www.mrexcel.com/board2/viewtopic.php?t=230845
Count Days Excluding SUnday
http://www.mrexcel.com/board2/viewtopic.php?t=230749
Lookup With Multiple Results
http://www.mrexcel.com/board2/viewtopic.php?t=231144


VBA

Change Sheet Name
http://www.ozgrid.com/forum/showthread.php?t=56781
Clear Old Pivot Items
http://www.ozgrid.com/forum/showthread.php?t=56885


List of All Excel Functions

http://www.mrexcel.com/board2/viewtopic.php?t=230815