AskCSV

Your CSV file stays in the browser when you use AskCSV, which runs its analysis there and does not upload the data to a server.

That is the main reason to pick this AI spreadsheet tool over pasting data into a chat window.

AskCSV is a data analysis tool that lets you ask plain questions about a CSV or TSV file and get answers back, using ChatGPT behind a simple question-and-answer interface.

There is nothing to learn beyond typing what you want to know.

Charting and quick exploration of a table are the typical uses, and the setup suits people who want a fast answer rather than a full analytics suite.

The catches are clear.

AskCSV only reads CSV and TSV files, so Excel workbooks need converting first.

The free tier limits how many rows you can load and how many questions you can ask.

If you hit those limits, a 1-Day Pass gives you on-demand access for a day, and then it expires, so you only pay when you have a job to do.