# Category Archives: Formula

## The amazing SUMPRODUCT

Advanced use of SUMPRODUCT for multi-conditional SUM In the previous posts, we talked about the basic of SUMPRODUCT, the behaviors of logical  values (i.e. TRUE/FALSE) when they are put into basic mathematics operations.  These set the foundation to understand the … Continue reading

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## The logic gate

Have you heard about Logic Gate?  I learned logic gate in high school physics.  Decades ago… so don’t expect I can remember what it is.  😛 Having said that, I do remember the fundamental concept about AND gate and OR gate, … Continue reading

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## SUM the PRODUCTs or SUMPRODUCT? That’s the question.

The basic of SUMPRODUCT Suppose we have a column showing retail price of different items; another column showing the units sold (illustrated above).  To get the total sales, most people will deploy a helper column to get the sales of each … Continue reading

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## CrossTab SUM with 3 variables

This post is trying to answer a question by Laura in the post of 2D SUMIF with two variables – one on column and one on row. Here’s part of the question: ……I want to look up the department in the vertical … Continue reading

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## Transpose Data (Static and Linked)

Answer to the 5 little Tricks posted in the beginning of the year – Part 1/5 Transpose Data – Result is static This is actually a simple trick of using Copy and Paster (Special, Transpose).  See? It can be done in a … Continue reading

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## Be cautious when using SUMIF(s)

SUMIF is a handy but helpful function.  The syntax is simple: =SUMIF(range,criteria,[sum range] What it does is quite straight forward indeed.  In the example above, it instructs Excel to look into the range (A2:A7), look for the matching criteria, which … Continue reading

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## Writing a long formula in steps

Writing a long formula is not easy, even for an advanced Excel user.  What I mean long is  a formula with many nested FUNCTIONS within a single formula.  The difficulty I am talking about is not related to whether you understand the … Continue reading

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## Text manipulation with Excel functions

We talked about RIGHT, LEFT, MID, UPPER, LOWER, PROPER, FIND, SEARCH, REPLACE and SUBSTITUTE in the past few weeks.  Now it’s time to put every thing together to solve a problem.  This is actually the most amazing part of using … Continue reading

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## Case-insensitive SUBSTITUTE???…

We talked about REPLACE and SUBSTITUTE last week.  At the final note, I said that SUBSTITUTE is case-sensitive.  If we need to perform a case-insensitive SUBSTITUTE, it is indeed not an easy job unless we are talking a single letter … Continue reading

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## REPLACE vs. SUBSTITUTE in Excel

Another pair of functions that has very similar meaning literally.   Although I am not able to tell you the differences between “replace” and “substitute” in English, I can show you the differences of the REPLACE and SUBSTITUTE in Excel. … Continue reading

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## FIND vs. SEARCH

In many situations, we use either FIND or SEARCH together with LEFT, RIGHT, MID to achieve what we need.  A typical example is to extract the first name and the last name from a full name where a coma acts as … Continue reading

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## UPPER, lower, Proper

I am wondering why these functions are not available in Word, but Excel? Don’t make me wrong.  I like these functions.  Nevertheless I am not a big fan (nor a small fan) of using Excel as word processor.  Whenever possible, … Continue reading

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## RIGHT. I LEFT. In the MID of…

Obviously this post is about the most popular text related functions in Excel.  Meanwhile, it is also a message from me… Yes, you are RIGH! I LEFT my ex-company and have landed on a new job which is much more … Continue reading

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## Display single letter Day of week in Excel

Is it achievable?  Not by formatting but formula.

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## Number Stored as Text…

It is something basic and commonly seen.  Nonetheless,  it is really important to understand the different behaviors between a number, and a number stored as text, especially if you want to move forward to write effective formula.  This post is intended … Continue reading

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Posted in Excel Basic, Formula | | 5 Comments

## Three different ways to do case-sensitive lookup

If you do VLOOKUP, you probably know that one of the limitations of VLOOKUP is case-insensitive.  It means case is not a consideration in the lookup process, where PETER is essentially the same as peter. Hence VLOOKUP will consider that … Continue reading

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## Rank in subgroup… RANKIF?

To get the overall ranking is easy with the RANK function.  The syntax of RANK =RANK(Number,Ref,[order]) Number is the number we want to rank; Ref is the list of numbers of comparison (could be an array, a reference or a list … Continue reading

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## Make impossible possible

Convert text of specific pattern like “1d 2h 3m 4s” into real time (26:03:04) in Excel To kick start the Year of Monkey, let’s challenge the apparently impossible… Do you think it is not possible in Excel?  If you do, you … Continue reading

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## Calculate number of “*day” in a given period

This post is about how to twist the NETWORKDAYS.INTL function to solve the question. About two years ago, I wrote a post <Calculate number of a specific day between two dates> to explain how the following formula (Solution 1) could solve the question: … Continue reading

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