Saturday, September 25, 2021
Excel provides several worksheet functions for working with normal distributions or 'bell-shaped curves.' This introduction to Excel's Normal Distribution functions offers help for the statistically challenged.

An Introduction to Excel’s Normal Distribution Functions

(Download the workbook.) When a visitor asked me how to generate a random number from a Normal distribution she set me to thinking about doing statistics...
Term loans can have a variety of repayment periods, interest rates, amortizing methods, and so on. Here's how to calculate amortization schedules for the two most common types of amortizing loans.

How to Use Excel Formulas to Calculate a Term-Loan Amortization Schedule

"How do I calculate cumulative principal and interest for term loans? I have scoured the web for a function that will perform this task,...
Excel offers at least three ways to set up data so your reports and analyses can use it easily as a reliable data source.

Introducing Excel’s Three Types of Spreadsheet Databases

Excel offers three general ways to arrange data in your spreadsheet so you can use it as a database with your worksheet formulas: Simple...
The Monte Carlo method allows you to forecast performance using probability distributions for your assumptions. And Data Tables provide a quick and easy way to implement the Monte Carlo method. Here's how to do it.

How to Create Monte Carlo Models and Forecasts Using Excel Data Tables

(Download the workbook.) (This is the second of two articles about normal distributions. The first article is, How to Return Random Numbers from a Normal...
Here's how to use a formula that returns TRUE or FALSE in Excel's conditional formatting feature to highlight rows that contain specific numbers or text.

How to Use Conditional-Format Formulas to Change Background Colors

"I have an Excel table with a column that will be filled with 'yes' or 'no. When a user enters 'yes' to a cell,...
The SUMIFS function returns a sum for nearly any number of single criteria. But with SUMPFODUCT you can return the sum for many criteria listed in a Criteria List.

How to Use SUMIFS with Criteria Lists, Summarizing Sales

With one exception, SUMIFS is a very powerful function. And it's very fast. To understand the one exception, suppose you have a table of sales...
Most loans and many investments are annuities, which are payments made at fixed intervals over time. Here's how to use Excel to calculate any of the five key unknowns for any annuity.

Excel’s Five Annuity Functions

“Help!” the message said. “I know the payment, interest rate, and current balance of a loan, and I need to calculate the number of...
Excel's dynamic range names give your formulas the power to adapt automatically in response to changes in your data or settings. Here's how to set them up.

How to Create and Use Dynamic Range Names in Excel

(Download the example workbooks.) We Excel users often refer to ranges that need to move or expand in future versions of our reports. For example: ...
Excel offers several ways to summarize data quickly and easily. Here are the most powerful and flexible approaches, which include using Excel array formulas.

The Most Powerful Ways to Summarize Excel Data for Reporting and Analysis

(Note: I wrote this before Microsoft introduced Excel Tables or SUMIFS. This post is scheduled for an update.) Excel users often need to summarize data...
Do you need to update your Excel reports with daily, weekly, or monthly data? Here's a low-maintenance way to do it, using one type of Excel database.

How to Report Periodic Data from Excel Databases

Sometimes, the best way to solve your Excel problem is to redesign your workbook. Ron G. brought this thought to mind with a recent question....

Latest Articles

Two unusual formulas can use the SEARCH or FIND functions to search any number of cells for any number of words—almost instantly.

How I Set Up SEARCH and FIND Formulas on Steroids

I've used Excel long enough to recognize when I've stumbled across an unusual formula. And it happened again a few minutes ago. In the past,...
Use this unique Excel dashboard to track the general rate of inflation, your personal rate, and the rate of the goods and services you buy.

Inflation Tracker Excel Dashboard with Consumer Prices

U.S. President John F. Kennedy once said of a growing economy, "A rising tide lifts all boats." However, a rising inflationary tide does not lift...
Excel's Quick Access Toolbar can save you many clicks and needless work. Here are the eight QAT tools that I use, and how I use them.

Eight Great Tools for Your Quick Access Toolbar

I use eight great tools in my Quick Action Toolbar (QAT), and you might want to consider using them yourself. Before I get into the...
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