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Office for Mac Issues

How to Install Libre Barcode 39 Font in Excel for Mac

Muhammad TalhaMuhammad Talha Oct 7, 2026 870 views

Question details

The user needs to install the Libre Barcode 39 font to successfully create and display barcodes within an Excel spreadsheet on a Mac.

How to Install Libre Barcode 39 Font in Excel for Mac
Product
Excel for Mac
Device & OS
macOS
Scenario
Generating Code 39 barcodes in an Excel spreadsheet for tracking or inventory purposes.
Observed behavior
The Libre Barcode 39 font is missing from the Excel font list and needs to be installed system-wide on the Mac.
Before you start

Ensure you have downloaded the Libre Barcode 39 font file (usually a .ttf or .otf format) from a reputable source, such as Google Fonts, and completely close Microsoft Excel before starting the installation.

Solution 1Recommended

Install the Font via macOS Font Book

Manually add the downloaded barcode font to your Mac's system fonts so it becomes available in Excel's font menu.

Mac applications, including Microsoft Excel, rely on the macOS Font Book for their font libraries. Adding the font here makes it globally available across all your software.

1
Locate the downloaded font

Navigate to your Downloads folder and locate the Libre Barcode 39 font file. If it is in a ZIP archive, double-click the archive to extract the .ttf or .otf font file.

2
Open Font Book

Press Command + Space to open Spotlight Search, type 'Font Book', and press Return to launch the application.

3
Add the font to the system

Drag and drop the extracted font file directly into the Font Book window. Alternatively, click the '+' button in the Font Book toolbar to browse and select the file manually.

4
Restart Excel

If Excel is open, press Command + Q to quit the application completely. Reopen your spreadsheet, select the text you want to convert into a barcode, and choose 'Libre Barcode 39' from the font dropdown menu.

Install the Font via macOS Font Book
Formatting Barcodes Correctly: When using Barcode 39, you must enclose your text in asterisks (e.g., *12345*) so barcode scanners can recognize the beginning and end of the sequence. You can automate this in Excel using a formula like ="*"&A1&"*".
Free Microsoft Office alternative

Create Barcodes Seamlessly with WPS Office for Mac

Having trouble managing fonts and barcodes in Microsoft Excel? Try WPS Office. It's a free, lightweight alternative that seamlessly integrates with your Mac's system fonts, making barcode generation and spreadsheet management effortless.

  1. 1. Install WPS Office: Download and install the free WPS Office application for macOS.
  2. 2. Open your spreadsheet: Launch WPS Spreadsheet and open your existing Excel (.xlsx) file containing the barcode data.
  3. 3. Apply the font: Select your target cells and pick the Libre Barcode 39 font from the drop-down menu to instantly generate your barcodes.
Fully compatible with Microsoft Excel formats (.xlsx, .xls) and standard barcode workflows.Automatically detects and loads new macOS system fonts without complex caching issues.Lightweight design that runs quickly and smoothly on all Mac devices.Free to use with a highly familiar interface, making migration instantly easy.
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Frequently Asked Questions

Why is my installed font not showing up in Excel for Mac?

Excel for Mac sometimes caches its font list upon startup. If a newly installed font doesn't appear, you must quit Excel completely using Command + Q and reopen it. In rare cases, you may also need to restart your Mac to force the system to refresh its font cache.

Do I need a special license to use the Libre Barcode 39 font?

The Libre Barcode 39 font is typically licensed under the SIL Open Font License, meaning it is free for both personal and commercial use. However, it is always good practice to verify the licensing terms on the specific website where you downloaded the font.

Why won't my barcode scanner read the Barcode 39 font generated in Excel?

Code 39 barcodes require an asterisk (*) at the very beginning and end of the data string to serve as start and stop characters for the scanner. Ensure your Excel cells are formatted correctly (e.g., *YOURDATA*) before applying the barcode font.

Where is the safest place to download the Libre Barcode 39 font for Mac?

It is highly recommended to download the font from a reputable source like Google Fonts. This ensures that you receive a safe, malware-free, and properly formatted font file that will work correctly with macOS Font Book.