What Excel Version Do I Have?

If you need to know which version of Excel you're running, whether to troubleshoot a formula, check if a feature is available, or pass the info along to IT, finding it takes less than a minute.

Contents:

1. Quick Answer

2. How to Find Your Excel Version on Windows

3. How to Find Your Excel Version on Mac

4. What the Version Number Actually Means

5. How to Tell if You Have Excel 365

Quick Answer

Go to File > Account (Windows) or Excel > About Excel (Mac). The full version number appears under "About Excel" or "Product Information", along with whether your copy is 32-bit or 64-bit.

How to Find Your Excel Version on Windows

Open any Excel workbook and click the File tab in the top-left corner. Then click Account in the left sidebar.

Look for the Product Information section on the right. You'll see the product name (for example, "Microsoft 365") and an About Excel button. Click that button to get the full version string, which looks something like this:

Version 2608 (Build 20308.20000 Click-to-Run)

How to Find Your Excel Version on Mac

On a Mac, click the Excel menu in the top menu bar (not inside the ribbon, but the system menu bar at the very top of the screen). Then click About Excel.

A small dialog box will pop up showing the version number directly, for example:

Version 16.84 (24041420)

What the Version Number Actually Means

The version numbers can be a bit confusing because Microsoft has used a few different naming systems over the years.

Here's a quick reference for the most common desktop versions:

Note that Excel 2016, 2019, 2021, and Microsoft 365 all share a major version number of 16. The build number (the longer number in parentheses) is what actually tells them apart. If the build number is updating regularly on its own, you're almost certainly on Microsoft 365.

How to Tell if You Have Excel 365

Microsoft 365 (formerly Office 365) doesn't have a fixed version the way Excel 2019 does. It updates continuously. The clearest way to confirm you're on 365 is to check the Account page (File > Account on Windows). You'll see "Microsoft 365" as the product name and a Connected Services or Office Updates section confirming it's subscription-based.

This matters because many modern functions like XLOOKUP, FILTER, and dynamic arrays are only available in Microsoft 365 or Excel 2021. If you're trying to use one of those functions and getting a NAME error, your version may not support it yet. Our post on basic Excel formulas and functions has a good overview of what's widely available across versions.

It's also worth noting that the bit version (32-bit vs. 64-bit) shows up on the same screen. Most modern installs are 64-bit, but if you're working with large files or certain add-ins, it can be relevant to know which one you have.