ISO 9001:2015 Certified
Govt. of Karnataka Affiliated
ADV EXCEL CLASS NOTES

Remove Duplicates, Text to Columns & Flash Fill

Microsoft Excel provides several powerful tools for cleaning and organizing data. Three commonly used tools are Remove Duplicates, Text to Columns, and Flash Fill. These tools help users manage large datasets quickly and accurately.


Remove Duplicates

Remove Duplicates is used to find and delete repeated records from a dataset while keeping only unique values.

Why Use Remove Duplicates?

Benefit Description
Clean Data Removes repeated records.
Improve Accuracy Avoids duplicate entries.
Save Time Automatically removes duplicates.

Example Data

Student Name
Rahul
Priya
Rahul
Amit
Priya

After removing duplicates:

Unique Names
Rahul
Priya
Amit

Steps to Remove Duplicates

  1. Select the data range.
  2. Go to Data Tab.
  3. Click Remove Duplicates.
  4. Select the columns to check.
  5. Click OK.
  6. Excel removes duplicate records automatically.

Shortcut Key

Alt + A + M


Text to Columns

Text to Columns is used to split data from one column into multiple columns based on a separator such as space, comma, tab, hyphen, or other characters.

Why Use Text to Columns?

Use Case Example
Split Full Name Rahul Sharma → Rahul | Sharma
Split Email name@gmail.com
Split Address City, State, Country

Example

Before Split After Split
Rahul Sharma Rahul | Sharma
Amit Kumar Amit | Kumar

Steps to Use Text to Columns

  1. Select the column containing combined data.
  2. Go to Data Tab.
  3. Click Text to Columns.
  4. Select Delimited.
  5. Click Next.
  6. Select the delimiter (Space, Comma, Tab, etc.).
  7. Click Next.
  8. Choose destination if required.
  9. Click Finish.

Common Delimiters

Delimiter Example
Space Rahul Sharma
Comma (,) Kolar,Karnataka
Hyphen (-) 2026-06-05
Tab Data separated by tabs

Flash Fill

Flash Fill automatically recognizes patterns in your data and fills the remaining cells without using formulas.

Flash Fill is one of the fastest tools for extracting names, combining text, formatting phone numbers, and cleaning data.

Example 1: Extract First Name

Full Name First Name
Rahul Sharma Rahul
Amit Kumar (Flash Fill)
Priya Singh (Flash Fill)

Type “Rahul” manually in the first row and use Flash Fill. Excel automatically extracts the remaining first names.

Example 2: Combine Names

First Name Last Name Full Name
Rahul Sharma Rahul Sharma

After typing one example, Flash Fill completes the remaining records automatically.

Steps to Use Flash Fill

  1. Type the expected result for the first record.
  2. Select the next cell.
  3. Go to Data Tab.
  4. Click Flash Fill.
  5. Excel detects the pattern and fills remaining cells.

Shortcut Key

Ctrl + E


Comparison of All Three Tools

Tool Purpose Shortcut
Remove Duplicates Delete repeated records Alt + A + M
Text to Columns Split data into multiple columns Alt + A + E
Flash Fill Automatically fill based on patterns Ctrl + E