Microsoft Excel:Official Excel home page, part of the Microsoft Office Suite.
A Way to Excel: Animated cartoon explanations of Excel functions by Niko Niko. Shareware.
Addix: Suppliers of financial, mathematical and statistical function libraries and tools for use in Excel, VB and VBA
Alan's Excel Page: Alan Barasch's guide to Microsoft Excel. A collection of macros, formulas, and links.
Anthony's VBA Page: Mathematical example programs for Excel. Anthony Sun.
Archives of Excel-G: A mailing list where the general or casual user can get help. Free registration required.
Archives of Excel-L: Developers mailing list. Presents messages from 1994. Free registration required.
David McRitchie's -- My Excel Macros: Excel macros and usage notes to help beginners and fairly advanced users.
Excel Tips: Offers tips, tutorials and help for spreadsheet design and VBA macro programming.
Excel VBA Examples: Visual Basic for Applications subroutines from Tommy Flynn.
Fred Cumming's Excel Page: Excel 5 workbooks compressed with pkzip and saved as self-extracting archives. User forms, macros, and utilities.
Macro-Investment Analysis in Excel: Using named ranges and matrix operations. William Sharpe, Stanford.
Microsoft Excel Development: How to develop spreadsheets using VBA, includes demonstration macros, sample program/code, and information on FOCARB: a program that re-balances investment portfolio book values.
OzGrid Business Applications: Excel add-ins, templates, and training.
Peltier Technical Services, Inc.: Information and tutorials about Excel charting and other tips and tricks.
The Excel Logic Page: Provides free downloadable files built using advanced techniques. Presentation of the author and contact information.
The Excellent Files: Provides files for download and tips. In the Netherlands.
Worksheet Server: Web server allowing the deployment of spreadsheets as a true PHP-based multi-user application.