A copilot for spreadsheet.
isiro sits next to Excel and does the boring parts for you. You tell it what you want in ordinary English, it shows you exactly what it plans to change, and nothing happens until you say yes.
Open a spreadsheet somebody else made and you tend to find the same mess. The same name spelled three different ways. Dates that have turned into random numbers. Money stored as text, so it refuses to add up. Empty columns sitting in the middle of everything.
Tidying that up by hand is an afternoon you will not get back. isiro does it in seconds, inside Excel, on the file you already have open. Nothing to upload, nothing to copy and paste, nothing new to learn.
You
the bank names are all over the place, tidy them up
isiro
Here is what I would do:
- ·Merge 6 spellings of "Guaranty Trust Bank" into one
- ·Remove the stray spaces around 47 names
- ·Leave the account numbers alone
A5
1. Ask
Type what you want the way you would say it to a colleague. "Shorten the bank names." "This sheet is a mess, sort it out."
B5
2. Check
isiro writes back a list of what it is about to do, in plain English. Cross out anything you disagree with.
C5
3. Apply
Press the button. The results land in a new tab, so your original sheet stays exactly as it was. Changed your mind? Undo.
35
things it can do
2
platforms
0
files uploaded
233
tests
A7
It shows you first
Every change is described before it happens. Nothing touches your data until you press Apply, and you can throw out any step you do not like.
B7
It cannot make things up
The AI is only allowed to pick from a list of things it is allowed to do. It is never allowed to type a value into your spreadsheet, so it cannot quietly invent a balance.
C7
Your file stays yours
The work happens on your own computer, on the file you already have open. Nothing gets uploaded, and your original sheet is never overwritten.
isiro is a Python app that drives Excel directly on your machine, plus a small cloud service for accounts and the AI calls, plus the website. The AI only ever writes the plan and ordinary code carries it out, which is the reason it cannot invent a number. It ships as a signed installer for Mac and Windows, and it has been tested end to end on both, on real spreadsheets, before every release.
There is a full technical write up if you want the detail, from the architecture down to the decisions I would defend in an interview.