If you need to have a drop-down list automatically adjust and remove items as they are selected, here’s one technique.

I recently saw a post on LinkedIn about making a drop-down list for a hyperlink interface. It was using a range name and the ADDRESS function. I thought I could streamline it with just the CELL function.

# Counting the Number of Cells in an Excel Range

Excel has functions to count the number of rows and columns in a range. It doesn’t have a function to count the number of cells in a range. We can still perform the calculation with the COUNTA function.

# Solving a Date – Time Issue in Excel

Often when you import data into Excel the dates may include a time. This can make summarising the data more difficult as time is included as a fraction of a date. You can use an old function to fix the problem. This solution requires the subscription version of Excel.

# IFERROR Function Now Handles SPILL Errors

Not sure when it happened, but a recent update to Excel has enabled the IFERROR function to handle spill errors.

# SUMIFS Magic Solution

A client recently had a problem. He was chasing a formula that identified if a text string contained one of three words. He wanted to base an allocation on finding those three words. SUMIFS offers a solution.

# Solving a Conditional Summing Text Problem in Excel

I was checking out an old Excel book Excel Outside The Box by long time Excel MVP Bob Umlas and noticed he used the N function in his SUMPRODUCT functions. I then realised why. It converts text to a zero. That gets around an issue with adding up ranges that contains text, thanks again Bob.

# Extracting Initials in Excel – Part 2

In the previous post we looked at extracting initials when we only had a first name and a last name in this post, we will look at handling more than two names.

# Extracting Initials in Excel – Part 1

Extracting initials in Excel can be challenging. That’s because the names can be separated by different characters and there can also be more than two names. Some new functions in Excel can simplify the extraction of initials.

# A Better SEARCH Function for Excel

The SEARCH function has a couple of issues that make it difficult to use. This makes it a prime candidate for a custom function to fix its limitations.

Following on from last week’s post on a single adjustment formula this post will share a more robust solution for including or excluding adjustments.

One of the advantages with Excel is that you can usually handle exceptions. In this post I examine a way to handle exceptions or adjustments without using the IF function.

# SUMIFS Wildcard Limitation

SUMIFS can use wildcard characters, but the wildcards only work on text-based codes.

# Calculating YTD percentages in Excel

When working with YTD percentages you must be careful with the calculation. Adding up values or amounts is easy. Working with YTD percentages require a bit more work.

# Percentage Movement in Excel

It is common in Excel to calculate the percentage movement or difference between two values. This may be between this year and last year or between actual and budget. There are two common issues you will face when doing this calculation. The first is handling zeros and the second is handling negatives.

# FILTER Function Technique

An application I use recently updated it’s filtering options to allow you to filter by any filters or all filters. This was a useful addition to the software and I thought that I could apply the same idea to Excel’s FILTER function.

# Benford’s Law in Excel – Part Two

Benford’s law is used in auditing to identify data sets that may have been manipulated or adjusted. In my previous post I created a report to analyse a data set based on Benford’s Law. In this post we will create a single formula to create the report and then convert that into a custom function.

# Comparing Averages in Excel

It is common in Excel to use averages to summarise large data sets. It is also common to compare the averages across different segments. Here’s a technique you might find useful when comparing a segment against all other segments.

# SUBTOTAL and Dynamic Arrays in Excel – Part 3

The SUBTOTAL function in Excel is quite flexible. The single function allows you to perform 11 different calculations. In this post we will create a custom function to summarise a data set.

# SUBTOTAL and Dynamic Arrays in Excel – Part 1

The SUBTOTAL function in Excel is quite flexible. The single function allows you to perform 11 different calculations. It can also ignore hidden rows, something that not many Excel functions can do.

# Highlighting Weekends in Excel

When you have a list of dates in Excel it can be useful to know which of those dates are weekends. You can automate a format for weekends using a conditional format.

# Unique Random Whole Numbers in Excel

Excel has three functions that can provide random numbers. But the random numbers created may not be unique random whole numbers. Here is one way to get a list of unique random whole numbers.

# Average Top and Bottom Values in Excel

When analysing data you may want to check for outliers. You can use MIN and MAX to get minimum and maximum values but you may want to average a certain  number of top or bottom numbers. Here’s how you can do it.

# TEXTBETWEEN function in Excel

Excel has new TEXTBEFORE and TEXTAFTER functions. It doesn’t have a TEXTBETWEEN function.  Let’s make one.

# Percentage of the Year in Excel

As we get used to the new year we may want to perform some calculations based on the old year. A recent inquiry requested a formula that could calculate the percentage of a year that an employee had been employed. He suggested using an IF function. See the solution below, but it doesn’t involve the IF function.

# Rounding to the Nearest 9 Cents in Excel

A client recently requested a formula to round to the nearest 9 cents. This avoids getting to a price point. This is a common requirement in retail businesses. The solution was simpler than I thought it would be.

# Custom Function for Age in Excel

Calculating age with years months and days takes several functions to create. Whenever you need multiple functions to calculate an entry you may have a good use case for a custom function.

# Last Weekday of the Month in Excel

Excel has a function to find the last day of the month. To find the last weekday of the month you can combine a couple of functions. Here is a custom function that also works.

# Custom Function for Days in the Month

Excel’s EOMONTH function is great. Here is a tweak using a custom function to calculate the number of days in a month.

# A Cell Reference Custom Function

The formula to return a cell reference is quite long. This makes it an ideal candidate for a custom function.