Use the OpenAI API in Excel with VBA, Power Query, or Office Scripts
Get an OpenAI API key from the OpenAI platform
Open Excel and enable the Developer tab if using VBA
Insert a VBA module or script to send prompts to the API
Write the prompt in a worksheet cell
Use the script to read the cell value and send it to ChatGPT
Parse the API response and write the result back to a cell
Use Power Query to call the API with a custom function
Use Office Scripts in Excel for web-based automation
Use third-party Excel add-ins that connect to ChatGPT
Store prompts and responses in separate columns for batch processing
Refresh the query or rerun the script to update results
Protect your API key and avoid sharing it in worksheets
Test with small requests before using it on large datasets