How to connect ChatGPT to Microsoft Excel
You can connect ChatGPT to Microsoft Excel with the GPT for Excel Word add-in:
Step 1: Install the GPT for Excel Word add-in
Install from the Microsoft AppSource marketplace: Office store link
Step 2: Open GPT for Excel Word
Click GPT for Excel Word from the ribbon's Home tab.
Step 3: Use ChatGPT in Microsoft Excel
ChatGPT is now connected to Microsoft Excel, you can use the Agent, the bulk tools, or GPT functions, using the models you want (currently gpt-5, gpt-5-search-api, gpt-4.1, gpt-4o, assistants, and more) with or without an API key.