How to Install Libre Barcode 39 Font in Excel for Mac
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.

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

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. Install WPS Office: Download and install the free WPS Office application for macOS.
- 2. Open your spreadsheet: Launch WPS Spreadsheet and open your existing Excel (.xlsx) file containing the barcode data.
- 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.

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.




