Last week, we had a lovely poll on what are your favorite features of Excel? More than 120 people responded to it with various answers. So I did what any data analyst worth his salt would do,
- I downloaded all the 120+ comments data
- I home brewed a large cup of coffee and started gulping it.
- I started analyzing the comments
So here are the top 10 features in Excel according to you.
1. Excel Formulas
63 people (50%) said Formulas are their favorite feature in Excel. Of course, you can say, Formulas & Functions are Excel!!! . They are what Excel is made of. But then again, a surprising fact is very few people actually know how to use formulas. Most people would Excel as a glorified notepad or ledger – just to type data. Once you understand the power of formulas, then you can be an irresistible analyst. Your boss & colleagues will be all over you for insights & information, much like the girls in Axe commercials.
Resources to learn Excel formulas:
- Introduction to Excel formulas – video
- Top 10 formulas for aspiring analysts
- 51 everyday Excel formulas – explained
2. VBA, Macros & automation
55 people said VBA is what makes them use Excel. VBA stands for Visual Basic for Applications, is a special language that Excel speaks. If you learn this language, you can make Excel do crazy things for you, like generate and email monthly reports automatically while you are busy reading this article.
Macros, little VBA programs are what you write to achieve this. Learning VBA can be quite fun, challenging & extremely rewarding experience. Once you learn VBA, suddenly your company will find you invaluable, thanks to all the time & effort you will be saving due to automation.
Resources to learn VBA:
3. Pivot Tables
53 people said they love Pivot tables. They save you a ton of time, let you create complex reports, charts & calculations all with few clicks. No wonder so many people love them.
Pivot tables are ideal tools for managers & analysts who always have to answer questions like,
- What is the trend of sales in last 6 months?
- Who are our top 10 customers?
- Which button do I press for strong latte?
May be not the last one, but Pivot tables can answer almost any business question if you throw right data at them.
Resources to learn Pivot tables:
- Introduction to Pivot tables
- Top 5 Pivot table tricks & tips
- Pivot tables – detailed information, examples & tutorials
4. Lookup Formulas
25 people said lookup formulas (VLOOKUP, HLOOKUP, INDEX, MATCH etc.) are their favorite feature of Excel. Lookup formulas help you locate any information in your workbooks based on input criteria. By knowing how to write lookup formulas, you can build dashboards, make interactive charts, create effective models & feel pretty darn awesome.
Resources to learn lookup formulas:
- What is VLOOKUP formula, how to use it?
- Comprehensive guide to Excel lookup formulas
- VLOOKUP quiz – how well do you know it?
5. Excel Charts
Excel charts help you communicate insights & information with ease. By choosing your charts wisely and formatting them cleanly, you can convey a lot. I guess, most people hate Excel charts (hence it is at 5th position), because they are hard to work with. You can loose a whole afternoon formatting the wedges of a pie chart. But thanks to resources like Chandoo.org, you know better to make a column / bar chart and be done in 5 minutes.
Resources to learn Excel charts:
- How to select right type of charts for your data
- Creating combination charts
- More charting principles & charting tutorials
6. Sorting & Filtering data
If Microsoft ever needs few extra billions of cash, they just have to turn sorting & filtering features in Excel to pay-per-use. These ad-hoc analysis features are so powerful & simple that any aspiring analyst must be fully aware of them.
Resources to learn sorting & filtering features:
- Filter by selected cell’s value & other cool tips
- Sorting pivot tables in anyway you want
- SUBTOTAL formula and using it with filters
- Introduction to Advanced filters
- More sorting tips | filtering tips
7. Conditional formatting
Conditional formatting is a hidden feature in Excel that can make your workbooks sexy. Just add some CF to highlight your data and you will turn boring into interesting. With new features like data bars, color scales & icon sets, conditional formatting is even more powerful.
Resources to learn conditional formatting:
- Introduction to conditional formatting
- Conditional formatting basics – Video
- Conditional formatting – top 5 tips
- More tips & tutorials on conditional formatting
8. Drop down validation & form controls
Right from my 3.5 years old daughter to CEO of a company, Everyone loves to be in control. So how can you make your workbooks interactive, so that end users can control the inputs ?
By using form controls & drop down lists of course.
Resources to learn dropdown lists, form controls:
- How to create an in-cell drop-down box for entering values?
- Introduction to Excel form controls
- Making your charts, workbooks & dashboards interactive – detailed guide
9. Excel Tables & Structural References
Excel tables, a new feature added in Excel 2007 is a very powerful way to structure, maintain & use tabular data – the bread and butter of any data analysis situation. With tables, you can add or remove data, set up structural references, connect them to external sources (SQL server, ODBC etc.), add them to data models (Excel 2013 onwards), link them to PowerPivot (Excel 2010 onwards), format automatically, filter & sort with ease and still be out of office before lunch break. It is a pity Microsoft did not call them pixie dust or magic mix.
Resources to learn Excel tables:
- Introduction to Excel tables
- Using Excel tables – Introduction video
- Using structural references – video
- More tips & tutorials on Excel tables
10. PowerPivot, Data Explorer & Data Analysis features
Although Excel in itself is quite powerful, it struggles to analyze certain types of data,
- Combining multiple tables and creating reports from them
- Processing data from difference sources and getting output to Excel
- What if analysis, scenarios & optimization
This is where add-ins like PowerPivot, Data Explorer and Analysis toolpak come in to picture. They let Excel do more, just like bat-mobile lets batman kick more ass.
Resources to learn more:
- Introduction to PowerPivot
- Introduction to DAX & PowerPivot measures
- Using Solver in Excel
- More on PowerPivot | data explorer
Learn all these features & more in one place
If you are looking to master all these top 10 features (and more) in one place, I highly recommend enrolling in my online classes. These training programs offer a step-by-step, in-depth, practical instruction on all areas of Excel, VBA, Dashboards & PowerPivot so that you can be awesome at your work. Click on below links to learn more.
- Excel, VBA & Dashboard training programs
- Excel & Dashboard training programs
- PowerPivot training program (next batch in July, 2013)
Or if you prefer face-to-face training & live in USA, you are in awesome luck. I am visiting USA this summer to conduct advanced excel & dashboards masterclasses in Chicago, New York, Washington DC & Columbus OH.
Click here for details & to book your spot.
42 Responses to “Prevent Duplicate Data Entry using Cell Validations”
Hi Chandoo, I need you help in the following problem.
I'm trying to get a direccion from a found result. With this dirreccion I will want the before cell value. For example, If result of a find is 38 localized in cell $C$2, I need to get previus value (cell $B$2 ), maybe Andrés.
Do you know some way to do that?
Thank you for you help.
Hi Chandoo
Thanks for this. One thing though: In my pre-2007 version of Excel, the COUNTIF function doesn't recognise a semicolon (;), but requires a comma.
Is the semicolon an Excel 2007 thing?
Jair... I am not sure I understand what you want. what do you mean by Dirreccion?
@Lincoln: I am sorry, often I forget that I am using European version of excel where the delimiter is ; instead of ,. I have corrected the formula now.
Thanks for this nice tip, i used to do a find all after filling every new items which was cumbersome.
Do you know a way to extend this validation search to other tabs/sheets ?
Thanks for you attention. I'm trying to get of value continue from a found value. Let me show a example:
Name Years
John 35
Maria 28
Teresa 32
If I search the max years, the result is 35, but I need that result to be John. Do you know how I can do it?
@Subbu.. you can easily extend the validation to other sheets by pasting the data validations. See the latest article here: http://chandoo.org/wp/2009/10/28/copy-data-validations/
@Jair.. you can use the large() or small() formulas to do this. for eg. =index(A1:A3,large(B1:B3,1)) will get you the name of the person with highest "years". More help here: http://chandoo.org/excel-formulas/large.html
Hi, I don't know if I'm using bad the formula or its performance is diferent for my Office version. Large() formula return the value in the cell, in my example 35. The index() formula use a range, row and column. I'm using the large() as number of row, and it is bad because into the range don't have row 35. This is my perception. What do you think?
Hi, I going to prove, with this solution by JLD http://jldexcelsp.blogspot.com/2008/07/extraer-direccion-de-celda-en-matriz.html
Hello,
I am trying to attempt data validation in Excel Mobile, but the DV tool isnt available. I want to prevent duplicates is all, any advice on acheiving this in Excel Mobile? Thanks..
@Jair... my french aint that good. it starts at "merci" and ends at "beau coup".
Anyhow, you need to merge the large with vlookup to do this. I am not sure if you have solved the problem. Otherwise let me know with details and I can write the formula in comments.
@Chad... I have never used excel mobile, so I have no idea. May be they have not implemented data validations in excel mobile.
Any excel mobile users out there?
Hi Chandoo, the proposed solution by JlD is interesting. He created a macro to get values when the matrix is not one dimensional, how on my problem. This fuction for me.
I would like to share you my work, how can I upload?
@Jair.. sorry for such a delayed reply.. you can upload the files to skydrive and link them here. Or you can email them to me at chandoo.d @ gmail.com and I will upload them somewhere. But it could take forever if you email files to me as I am a bit lazy.
[...] Day 31: Advanced Data Validation Tricks in Excel – Part 2 [...]
Hi,
Can you help me in Microstrategy?
Br,
Moin
really wonderful article. I feel it is implementing Primary Key concept into spreadsheets.
Hi article on data validation. Excel is a very versatile platform to work with and we use it for all kinds of data tabulation. In fact this must have been the most rudimentary data management tools I must have worked with and knowing such tips only adds functuionality to our user experience. Great article. looking forawrd to read more.
Hi Chandoo,
Thanks for such a nice idea.
I tried copy paste the data into the validated area, but the pop-up msg (warning msg) doesn't came. Is it something that we need to update the data manually each time,.
Do we have any option where we can bulk upload the number and it throws a warning message that the data already exits and do we want to continue with this ?
Please do reply me.
Thank you.
Regards,
Vasanth.
It was really useful chandoo...thanks a lot...
Tried this in excel 2010 and it did not work?
Could the newer excel have changed that much?
@Leo
It works fine in Excel 2010
The formula used above =COUNTIF($B$4:$B$11,B4)<=1
only applies to the range B4:B11
Did you adjust the range to your data?
This page helped me accurately to find solution of my question. thanx
we want to prevent duplicate entries in three columns combined, using data validation, i.e. say, column A has first name and Column B has middle name, Column C has last name. the first name can be duplicate, middle name can be duplicate, last name can be duplicate, but not all three at the same time.
I want to prevent duplicate entries in three columns combine, using data validation, i.e. say, column A has first name and Column B has middle name, Column C has last name. the first name can be duplicate, middle name can be duplicate, last name can be duplicate, but not all three at the same time.
Hi, I've tried above validation method to prevent duplicate value from entering into the cells. It's work, when user key in the data into the selected range. However, it's not working when user copy-&-paste the info into the same range.
Please advice. Thanks.
Hi Chandoo,
Does it work in Excel 2007?
Please Reply
thanks chandoo........
it does not work when data is copy pasted...any solution for this??
hi i m shaloo and i want to know in excel if i write duplicate no.then it says or show about we are write duplicate no.
Hi Chandoo
I've tried using this with a Named Range, which is actually a column in a Table as DV wont accept a table reference, and it wont work.
Also tried using Offset to specify the Named Range, but that wont work either.
Is it possible to use Named Ranges with DV?
Thanks
Kris
I have tried the above formula on a table column. The Error box does not pop up, there is only the small ! next to the cell with the duplicate. The column I am working with is formulas that produce a date. Is the reason it doesn't work that the cells contain formulas rather than data?
The formula works but only if I enter data in cell above it. So for example, if I have "123" in B11 it does not allow me to enter "123" in B10, B9, B8, etc. But I can still enter "123" in B12. Please help! 🙂
Great tip.. thanks a lot
I have 21 years of experience working as data entry assistant. I constantly read several blogs to keep myself up-to-date with the advances in data entry profession. I really enjoyed this blog post. From my several years of experience, I agree with you 100% when you say, “ We all know that data validation is a very useful feature in Excel. You can use data validation to create a drop-down list in a cell and limit the values user can enter. ”
Keep blogging. I will come here again.
--data entry assistant
Hi,
This is really very helpful.
Thank you
how can i assign two validation on a single cell
one is for list validation (means the data should be from that range)
second i want to prevent them from repetition
how can i do this ?
P7 to P506 have GR# which are for list
i want to prevent C column to not to repeat and should be from the P column
@Junaid
Can you please post the question in the Chandoo.org Forums
http://forum.chandoo.org/
You have to register to be able to post questions
Please attach a file so that a specific answer can be delivered.
i made an account but there is no option available to post questions ??
where can i ??
@Jubaid
Goto http://forum.chandoo.org/
Goto Ask an Excel Question
Post New thread
Type your question
Attach a file
Please attach a file so that a specific answer can be delivered.
friend can any one tell me the formula
exname location qty
gaurav 1 1
rofan 2 5
sandeep 3 6
gaurav 4 3
rofan 5 4
sandeep 6 8
gaurav 7 9
If this is a data.
if i want a formula by which if i type gaurav then all the location and qty should be shown in a new page.
i had 5,00,000 sku so if i punch one name i can get the entire details
@Gaurav
Can you please post the question at the Chandoo.org Forums
http://forum.chandoo.org/
Please attach a sample file for a quicker more targeted response
IF(ISERROR(INDEX($B$3:$C$9,SMALL(IF($B$3:$B$9=$B$12,ROW($B$3:$B$9)-ROW($C$2)),ROW(A1:C1)),2)),"",INDEX($B$3:$C$9,SMALL(IF($B$3:$B$9=$B$12,ROW($B$3:$B$9)-ROW($C$2)),ROW(A1:C1)),2))
please explain
YOUR COUNTIF FORMULA IS REALLY HELPFUL AND WORKS. I TRIED SEVERAL SITES BUT THEIR FORMULA DOES NOT WORK. ONLY YOU HAVE GIVEN A RIGHT FORMULA!
THANK YOU!!!!!