If you use Excel to model businesses, business processes, or business transactions, this course will change your life. You’ll learn how to create tools for yourself that will amaze even you. Unrestricted use of this material is available in two ways.

As a stand-alone Web site
It resides on your computer, and you can use it anywhere. No need for Internet access.
At this Web site
If you have access to the Internet whenever you want to view this material, you can purchase on-line access. Unlimited usage. I’m constantly making improvements and you’ll get them as soon as they’re available.

To Order On Line

 Order "Spreadsheet Models for Managers, on-line edition, one month" by credit card, for USD 69.95 each, using our secure server, and receive download instructions by return email.
 Order "Spreadsheet Models for Managers, on-line edition, three months" by credit card, for USD 199.00 each, using our secure server, and receive download instructions by return email.

To Order by Mail

 Make your check payable to Chaco Canyon Consulting, for the amount indicated: For the download: USD 199.00 For access online for three months: USD 199.00 For access online for one month: USD 69.95 And send it to: Chaco Canyon Consulting 700 Huron Avenue, Suite 19C Cambridge, MA 02138

To use the course software you’ll need some other applications, which you very probably already have. By placing your order, you’re confirming that you have the software you need, as described on this site.

• Workbooks have worksheets
• Worksheets have arrays of cells
• Each cell can have a formula, a value, and a format
• Formulas can include references to other cells:
• On the same or another worksheet
• In another workbook
• When the formula of cell X contains a reference to another cell Y, we say that:
• X links to Y; or X is a dependent of Y; or X depends on Y
• Y is a precedent of X
• When we “recalculate,” each cell computes its new value

The power of spreadsheets comes from the ability of their cells to compute their values from the formulas those cells contain. The formulas can contain numbers, text, true/false values, invocations of functions, and, most important, references to other cells or ranges of cells, among many other things.

When a cell contains a reference to another cell, we say that it links to that cell.