At work I use pivot tables nearly every day. My work does not involve analyzing business or financial data and still I find pivot tables very useful in manipulating data sets, performing on-the-fly calculations, and preparing final reports.
So, what is a pivot table?
A pivot table is a data summarization tool found in data visualization programs [...]

Name Manager, now at Version 4, is a Excel Add-In that I find useful. Many times I have had to deal with workbooks with more than 100 names, many that are no longer valid. Name Manager helps manage such a mess.
If you are in need of a utility to manage defined names in [...]

An Excel file saving utility from Jan Karel Pieterse.
Autosafe.zip (28 February 2007, 150k, Downloaded: 362 times) Version 3.5 of Autosafe enables use in environments with long paths/filenames. The standard Autosave (note the spelling) utility that ships with Excel just saves workbooks at a set interval, overwriting the file on disk. This is not [...]