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Recent Posts


Are Excel and Google Sheets Formulas the Same?
Excel and Google Sheets share most common formulas, but there are real differences. Here's what you need to know before switching between the two.


Are Excel Macros Going Away?
Worried that Excel macros are being phased out? Here's what Microsoft has actually said, and what it means for your VBA code.


Are Excel Sheets Infinite?
Excel sheets are large, but they're not infinite. Here's exactly how many rows and columns you get, and what to do when that's not enough.


Can Excel Calculate Standard Deviation?
Yes, Excel can calculate standard deviation using built-in functions. Learn which formula to use and when, with examples.


Are Excel Files CSV Files?
Excel files and CSV files are not the same thing, though Excel can open and save both. Here's the difference and when it matters.


How to Calculate Working Days Passed in Current Month
When working with dates, you'll sometimes find that you need to calculate the number of working (or business days) that have passed in...


GitHub Style Habit Tracker & Calendar Heat Map in Excel
I've always admired the way GitHub presents your contribution activity with a slick, heatmap-styled tracker. Let's create our own version in Excel. Contents: 1. Data Setup 2. Formula 3. Formatting 3.1. Conditional Formatting 3.2. Cell Size 3.3. Hide Text Values 3.4. Cell Border 3.5. Adding Month/Day Names 4. Adjust for Different Start Days (Non-Monday) Habit Tracker & Calendar Heat Map There are a two main parts that we need to convey with our heatmap. First w


How to Calculate Working Days in a Month
When working with dates, you'll sometimes find that you need to calculate the number of working (or business days) in a month, from a...


How to Convert Large Decimal Numbers to Binary
There are lots of ways to convert decimal numbers into binary. Excel has a built in function for small numbers, but you'll need a custom...


How to Convert Large Binary Numbers to Decimal in Excel
There are two good ways of converting binary to decimal. Excel has a built in function for small numbers, but you'll need a custom...


How to Begin a Cell with an =, -, or + Sign Without Creating a Formula
Sometimes you find yourself wanting to start a cell with an "=", "-", or a "+" sign, but don't want Excel to create a formula. There are...


How to Perform a Two-Way XLOOKUP
A regular, one-way XLOOKUP, is a fantastic tool, but sometimes you may find yourself needing to lookup a value in two different...


How to Unstack Uneven Data From a List in Excel
While the WRAPROWS function can be great to unstack a list with an even number of items, we'll need a custom formula to wrap, or unstack...


How to Reverse or Flip First and Last Names in Excel
You'll often see names that are out of order, and need to flip them. Here are a couple quick formulas to help you accomplish that task....


How to Create Index Columns Using Dynamically Spilled Arrays
Add an index column to any dynamic array using a few of the latest Excel functions for easy lookups. Contents: 1. Adding Index Column to...


How to Create a Dynamic Array of Repeating Cells
Create a repeating list based off of a range and a specific numbers of repetitions. Contents: 1. Formula 2. Explanation Formula To...


How to Calculate Number of Days Between Two Dates in Excel
A short formula you can use to calculate the number of days between two specific dates. Contents: 1. Formula 2. Explanation 3. Example...


How to Calculate Weekend Days Between Two Dates in Excel
An easy formula you can use to calculate the number of weekend days between two specific dates. Contents: 1. Formulas 2. Explanation 3....


How to Calculate Number of Weekend Days Left in the Current Month in Excel
A quick formula to calculate the number of weekend or non-working days remaining in the current month. Contents: 1. Formulas 2....


How to Calculate Number of Weekdays Left in the Current Month in Excel
A quick formula to calculate the number of weekdays, business days, or working days remaining in the current month. Contents: 1. Formulas...
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