VLOOKUP may not make you tall, rich and famous, but learning it can certainly give you wings. It makes you to connect two different tabular lists and saves a ton of time. In my opinion understanding VLOOKUP, INDEX and MATCH worksheet formulas can transform you from normal excel user to a data processing beast.
Today, lets understand how to use these formulas better.
What is the syntax for Match, Vlookup and INDEX?
Here is the syntax for these three very powerful functions in plain English:

What are vlookup () and match () ?
VLOOKUP and MATCH are your way of asking excel to find a needle in haystack. Imagine you have all your customer contact information in one sheet in the range A1:D5000 in the format phone number, name, city and date of birth. Now you need to find out which customer has the phone number “936-174-5910”. How do you do it?
You guessed it right, you use VLOOKUP and summon excel to do the search and return with customer name.
While VLOOKUP is used to fetch value a based on what you are looking for, MATCH is used to fetch the position of the value you are looking for.
See this illustration to understand :

What does VLOOKUP really do?
Imagine you have a list of data like this:

Now, how do you answer the question – “How many sales did Jimmy make?“
Yes, your guess is right. VLOOKUP is one of the formulas you can use to answer questions like this.
VLOOKUP searches a list for a value in left most column and returns corresponding value from adjacent columns.
So, in our case, we need VLOOKUP to search for Jimmy and return the amount of sales he made from column 3.
VLOOKUP Syntax & Examples:
The syntax of VLOOKUP is simple:
=VLOOKUP( this value, your data table, column number, optional is your table sorted?)
Here is an example to get you started:

Learn more about VLOOKUP Formula with examples
Please check out this page for 10+ examples of VLOOKUP and how to use it to solve real world problems.
VLOOKUP Examples & Homework
I have made a small excel file detailing 4 VLOOKUP formula examples. The file also contains some home work so that you can practice this formula.
Download VLOOKUP Example Workbook
[NEW] XLOOKUP replaces VLOOKUP in Excel 365
If you are using Excel 365, you can use the new & improved XLOOKUP function. It offers a shorter & more versatile syntax for performing lookups.
For ex: the same lookup as above will be done with XLOOKUP like below:
=XLOOKUP(“Jimmy”, A2:A14, C2:C14) will lookup “Jimmy” in column A and return sales amount from Column C.
Click here to learn more about XLOOKUP.
So what is INDEX() then?
INDEX function is your way of telling excel to fetch a value from large range of values. Since MATCH() function can tell us where the data is found, you can then use INDEX() function to extract corresponding data from another column. In this case, we can use MATCH() to find out which row has net sales 1,799 and INDEX() to return the name of the person. Like this:
Find the position of 1,799 in sales: =MATCH(1799, $C$2:$C$14, 0)
The answer will be 8.
To find the 8th person in names list, we can use INDEX() function like this:
=INDEX($A$2:$A$14, 8)
The answer will be Jagjit.
Related: Learn more about INDEX Formula.
So how are INDEX() and MATCH() linked to each other?
Since MATCH returns the position of the item you are looking for in a list, you can then use this position in INDEX to fetch values surrounding the searched value.
So, we can combine both functions like this:
=INDEX($A$2:$A$14, MATCH(1799, $C$2:$C$14, 0))
This combination is called as INDEX+MATCH formulas.
Related: Using INDEX + MATCH functions & INDEX+MATCH Video
Finally
Remember, both VLOOKUP and MATCH throw a fail error of #N/A if the value you are looking for is not there. If you want to stop seeing the error, use IFERROR function.
Just use them with some dummy data, play around with arguments and see how you can say “oh yeah, I can do that in few minutes” to your boss next time.
VLOOKUP tutorial – video
Please watch this quick video tutorial to understand all these concepts and how to write VLOOKUP formulas easily.
INDEX MATCH Tutorial – Video
Want to Learn More Formulas? Get my VLOOKUP book
If you want to learn VLOOKUP and other Excel lookup functions, then consider getting my VLOOKUP book.















12 Responses to “Analyzing Search Keywords using Excel : Array Formulas in Real Life”
Very interesting Chandoo, as always. Personally I find endless uses for formulae such as {=sum(if(B$2:B$5=$A2,$C$2$C$5))}, just the flexibility in absolute and relative relative referencing and multiple conditions gives it the edge over dsum and others methods.
I've added to my blog a piece on SQL in VBA that I think might be of interest to you http://aviatormonkey.wordpress.com/2009/02/10/lesson-one-sql-in-vba/ . It's a bit techie, but I think you might like it.
Keep up the good work, aviatormonkey
Hi Chandoo,
You might find this coded solution I posted on a forum interesting.
http://www.excelforum.com/excel-programming/680810-create-tag-cloud-in-vba-possible.html
[...] under certain circumstances. One of the tips involved arranging search keywords in excel using Array Forumlas. Basically, if you need to know how frequent a word or group of keywords appear, you can use this [...]
@Aviatormonkey: Thanks for sharing the url. I found it a bit technical.. but very interesting.
@Andy: Looks like Jarad, the person who emailed me this problem has posted the same in excelforum too. Very good solution btw...
Realy great article
"You can take this basic model and extend it to include parameters like number of searches each key phrase has, how long the users stay on the site etc. to enhance the way tag cloud is generated and colored."
How would you go about doing this? I think it would need some VB
Hi,
I found the usage very interesting, but is giving me hard time because the LENs formula that use ranges are not considering the full range, in other words, the LEN formula is only bringing results from the respective "line" cell.
Using the example, when I place the formula to calculate the frequency for "windows" brings me only 1 result, not 11 as displayed in the example. It seems that the LEN formula using ranges is considering the respective line within the range, not the full range.
Any hint?
@Thiago
You have to enter the formula as an Array Formula
Enter the Formula and press Ctrl+Shift+Enter
Not just Enter
Thank you, Hui! I couldn't work out how this didn't work
is there a limit to the number of lines it can analyse.
Ie i am trying to get this to work on a list of sentances 1500 long.
@Gary
In Excel 2010/2013 Excel is only limited by available memory,
So just give it a go
As always try on a copy of the file first if you have any doubts
Apologies if I am missing something, but coudn't getting frequency be easier with Countif formula. Something like this - COUNTIF(Range with text,"*"&_cell with keyword_&"*")
Apologies if I missed, but what is the Array Formula to:
1. Analyze a list of URL's or a list of word phrases to understand frequency;
2. List in a nearby column from most used words to least used words;
3. Next to the list of words the count of occurrences.