Use Excel with ChatGPT and Claude

• MacWorks
• WindowsWorks
• LinuxWorks

Edits the file directly; Excel itself does not need to be installed.

“Add up column D in every workbook in the Invoices folder and give me one table by month”
“Make a new sheet in budget.xlsx that sums each category”
“Find rows in customers.xlsx where the email is missing”
“Turn this CSV into an .xlsx with a header row”

BCD opens the workbook file itself: it reads sheets and cell ranges, writes values and formulas and appends rows. Edits go to a new file and keep the original, with styles, charts, images, merged cells and tables preserved. Supported formulas are recalculated.

• VBA macros are kept in the file but never run.
• Edits are saved as a new file; the original stays as it was.
• It works on the file, not on a workbook open in the Excel app.

Do I need Excel installed?
No. BCD reads and writes .xlsx and .xls files itself.

Does it work on Windows and Linux?
Mac: works, Windows: works, Linux: works. Edits the file directly; Excel itself does not need to be installed.

Which AI apps can do this?
ChatGPT (BCD is in its plugin directory), Claude (as a custom connector) and other apps that support MCP connectors, including Codex. They all use the same computer with the same permissions.

Is it safe?
A new computer starts read-only. Writing files, running commands and controlling apps are turned on per computer, and BCD reaches only the folders you allow.

Try it on your computer

One computer is free, with 20,000 tool calls a month and no card. New accounts get Personal (3 computers) free for the first month.