May 26, 2026 · 6 min read
Locking cells prevents accidental edits to formulas, headers, or finished work while still allowing input in the cells that need it. This guide shows you how to lock cells and protect sheets in Excel — including the common pattern of locking everything except specific input cells.
How Cell Protection Works
Two things must be true for a cell to be locked:
- The cell’s Locked property is checked (it is by default — every cell starts locked).
- The sheet is protected.
This means: until you protect the sheet, the “Locked” property does nothing. And when you protect the sheet, everything is locked unless you explicitly unlock certain cells first.
Read more →May 24, 2026 · 7 min read
Pivot Tables let you summarize thousands of rows into a meaningful report in seconds — no formulas required. This tutorial walks you through creating your first Pivot Table from scratch, then shows you how to slice, group, and format the results.
What Is a Pivot Table?
A Pivot Table takes a flat data table and lets you drag fields around to instantly see totals, averages, counts, and other summaries by category. Instead of writing SUMIFS formulas for every combination, you drag and drop.
Read more →May 22, 2026 · 5 min read
COUNTIF counts cells that match a condition. COUNTIFS counts cells that match multiple conditions. Together they handle the vast majority of conditional counting tasks in Excel. This guide covers both functions with practical examples you can use immediately.
COUNTIF Basics
Syntax
=COUNTIF(range, criteria)
| Argument | What It Does |
|---|
range | The cells to evaluate |
criteria | The condition to match (number, text, expression, or cell reference) |
Count a Specific Value
How many times does “Apple” appear in column A?
Read more →May 20, 2026 · 6 min read
Excel has four ways to combine text: CONCATENATE, CONCAT, TEXTJOIN, and the ampersand (&) operator. This guide compares CONCATENATE vs CONCAT vs TEXTJOIN so you know exactly which one to use and when.
CONCATENATE — The Original
CONCATENATE has been in Excel since the beginning. It joins multiple text strings into one.
Syntax
=CONCATENATE(text1, text2, text3, ...)
Example: Full Name from Parts
=CONCATENATE(A2, " ", B2)
Joins first name (A2), a space, and last name (B2). Result: “John Smith”
Read more →May 18, 2026 · 6 min read
Dropdown lists keep data entry consistent and prevent typos. This guide shows you how to create a dropdown list in Excel — from a basic static list to dynamic dropdowns that update automatically and cascading dropdowns where the second list depends on the first.
Create a Basic Dropdown List
The simplest dropdown uses a comma-separated list typed directly into the Data Validation dialog.
Steps:
- Select the cell (or range of cells) where you want the dropdown.
- Go to Data tab → Data Validation.
- Under “Allow,” select List.
- In the “Source” field, type your options separated by commas:
Yes,No,Maybe
- Click OK.
The cell now shows a small arrow. Click it to see your options.
Read more →May 16, 2026 · 6 min read
The Excel IF function lets you make decisions in your formulas — return one value when a condition is true, another when it’s false. This guide covers the basics, nested IFs, the newer IFS function, and real examples you can use immediately.
IF Function Basics
Syntax
=IF(logical_test, value_if_true, value_if_false)
| Argument | What It Does |
|---|
logical_test | The condition to evaluate (must result in TRUE or FALSE) |
value_if_true | What to return when the condition is TRUE |
value_if_false | What to return when the condition is FALSE |
Simple Example
=IF(A2 >= 60, "Pass", "Fail")
If the value in A2 is 60 or higher, the cell shows “Pass.” Otherwise, it shows “Fail.”
Read more →May 14, 2026 · 6 min read
Duplicate data causes wrong totals, inflated counts, and embarrassing reports. Here are five ways to remove duplicates in Excel, from the quickest one-click method to scalable approaches for large datasets.
This is the fastest way to remove duplicates in Excel. It’s built into the ribbon and takes about three clicks.
Steps:
- Click any cell inside your data range.
- Go to Data tab → Remove Duplicates.
- Excel selects all columns by default. Choose which columns to check for duplicates.
- Click OK.
Excel deletes duplicate rows in place and tells you how many were removed versus how many unique values remain.
Read more →May 12, 2026 · 7 min read
If you already know VLOOKUP and wonder whether XLOOKUP is worth learning, this article gives you a straight answer. You’ll see exactly how VLOOKUP vs XLOOKUP compare in syntax, flexibility, and real-world use — plus practical examples you can paste into your own spreadsheets today.
What Is VLOOKUP?
VLOOKUP (Vertical Lookup) has been the go-to lookup function in Excel since the early 1990s. It searches for a value in the first column of a range and returns a value from a specified column in the same row. If you’ve been using Excel for more than a year, chances are VLOOKUP was one of the first “advanced” functions you learned.
Read more →