For Excel users who do not write code

You have a folder full of spreadsheets. Describe the job. It does it.

Not a chat you paste cells into. A real AI agent that opens the actual files on your computer, does the work across all of them, and saves the result back. No formulas to write, no macros, no VBA, nothing to upload.

Free, open source, Windows and macOS. You bring your own Claude subscription.

The difference that matters

Why pasting into a chat keeps failing you

You have probably tried. You open a chat, paste a column, get an answer, paste it back. It works for one small thing and collapses on anything real. Here is why, and it is not your fault.

Pasting into a chat
  • One file at a time, and only the part you managed to paste
  • Upload limits, and a file that is too big simply will not go
  • It hands you text back. You still do the copying, the pasting and the saving
  • Your file never changes. You change it, by hand, again
  • Forty files means doing all of this forty times
An agent on your own folder
  • Reads every file in the folder, however many there are
  • No uploading. The files never leave your computer for this step
  • It writes the result out as a real file, saved where you said
  • Works across all of them in one instruction
  • Forty files is the same one sentence as four

This is the whole point. Excel is excellent at one workbook. The moment the job spans a folder, Excel wants you to become a programmer. This is the way around that, without becoming one.

Real jobs, in the words you would use

Things people ask it to do on their first day

You type these as ordinary sentences. There is no syntax to learn and nothing to get wrong.

Merge the monthly reports

"Take all 40 monthly files in this folder and build one summary sheet, one row per month, with the totals from column G."
The job that eats a full day, every quarter.

Clean up what someone else typed

"Fix the dates in column C so they are all the same format, trim the extra spaces from the names, and flag any row where the ID is missing."
No find and replace marathon.

Find what does not match

"Compare last month's price list to this one and give me a sheet with only what changed, with the old and new value side by side."
The reconciliation nobody enjoys.

Split one monster into many

"Split this sheet into one file per branch, name each file after the branch, and put them in a new folder."
Twenty minutes of manual filtering and saving.

Explain a workbook you inherited

"Read this workbook and tell me in plain words what it calculates, which cells feed the final number, and anything that looks broken."
The file whose author left the company.

Do it again next month

"Do the same thing you did last month with the new folder."
It remembers the project, so the second time is one sentence.
The honest part

What you should know before you download

Your files

It works on the folder you pick and nothing else. It asks before it changes things, and you can tell it to show you first. Keep a copy of anything precious the first few times, the same as you would with a new macro.

It is not magic

It will get things wrong sometimes, and you check its work the way you would check a colleague's. The difference is it does forty files in the time you would spend opening the first one.

What it costs

The tool here is free and open source. It runs the official Claude Code from Anthropic, and that needs your own Claude subscription or an API key. There is no charge from us and no account with us.

Do I need to learn the terminal

No. That is the entire reason this exists. You pick your folder in a normal window, you type in plain language, and you never see a command.

Getting started

From download to your first finished job

1Download and double-click. It installs what it needs in the background. Nothing to configure, and no administrator rights needed.
2Pick the folder with your spreadsheets in the window that opens. This is the only "setup" there is.
3Type what you want done in an ordinary sentence, and watch it work. Start with something small and reversible, like a summary of files you already have.

Give it one real task from your own week. Not a test, a real one. That is when it stops being interesting and starts being useful.

Get it

Free, open source, no account, no telemetry.

Download for Windows All download options

Writing in Hebrew, Arabic or Persian? Kivun Terminal is the same idea with right-to-left text rendered correctly.

If it saves you a day, a star on the repo is how the next person finds it.

Want someone to sit with you and set it up on your own files? There are guided sessions for that.