Coding with VBA & AI || Build an OFFLINE Barcode Reader in Excel
In this live-build project, we tackle a classic challenge: creating an offline barcode reader directly within Excel VBA. Learn the new normal of development as we use AI (specifically ChatGPT and Gemini concepts) to architect, debug, and write the VBA code necessary to process thousands of barcode image files without relying on any external API calls or cloud services.
This is a complete, step-by-step tutorial perfect for VBA developers and Excel power users who need to automate data entry from physical assets.
What You Will Master in this VBA Tutorial:
VBA Automation: Learn how to create robust VBA Sub and Function procedures to iterate through a folder of images and extract data.
External Tool Integration: Discover the critical technique of using the VBA Shell Object and WScript.Shell to call a third-party, command-line tool. This is the ultimate skill for extending VBA's capabilities.
Offline Barcode Decoding: We utilize the powerful, free, open-source ZBar utility (zbarimg.exe) to reliably read both 1D (Linear Barcodes, like Code 128) and 2D (QR Codes) from .png or .jpg image files.
AI-Assisted Coding Workflow: See the TCREI Framework in action—using ChatGPT not just for boilerplate code, but for tool discovery, command-line syntax verification, and rapid development.
Real-World Scenario: Solve a common business problem like stocktake automation and asset tracking where network connectivity is zero (No WiFi).
Macro file can be downloaded from:
https://github.com/skillsandautomatio...
All prompts from this video can be found here:
https://skillsandautomation.com/usefu...
Timestamps:
00:00 Intro
01:40 Crash Course on Barcodes
03:38 Project Scenario
04:29 Planning the Build
06:49 Download third party tool
09:01 Start Build