Acuity Training - Practical IT training courses. Small classes and expert trainers.
Trump Excel - A collection of online Excel tutorials and courses.
Allen Wyatt's Excel Tips - Powerful tips on using Microsoft Excel.
Clearly and Simply - Intelligent Data Analysis, Modeling, Simulation and Visualization.
VBA Express Forum - Visual Basic for Applications discussion forum and code center.
Excel Templates - Vertex42's extensive list of free Excel templates, spreadsheets, and calculators.
Add-ins - Over 80 add-in products that make Microsoft Excel easier to use.
Advanced Excel - South Africa's premier provider of Excel training, consulting and Excel add ins.
Excel Guru - Helps you find solutions and to be more proficient in Excel.
JaxWorks - Small business spreadsheet factory since 1996.
PDF to Excel converter - Convert PDF to Excel and Word with Able2Extract.
JKP Application Development - Lots of articles and free tools from Excel MVP Jan Karel Pieterse.
Excel Pratique - Learn how to use Excel 2007, 2010 and 2013 for free.
Rainbow Analyst - Quickly highlights errors and problems in spreadsheets.
Excel Templates - Spreadsheet123's list of free Excel templates and spreadsheets.
Eric Renaud - A French site to help you with programming in Excel VBA.
Excel Templates for Business - Efficient Excel business templates to facilitate financial analysis.
Excel Add-ins from AbleBits - Plenty of time-saving add-ins for Excel 2013 - 2000.
Add-in Express - Component sets for customizing and extending Microsoft Office.