Jupyter Notebooks, AI, and formatting. All in one Excel add-in.

Turn any Excel range into a Jupyter Notebook or Pandas DataFrame with one click. Add ChatGPT to your cells. Polish your spreadsheets with tickmarks, highlights and custom icons. One add-in, one payment, no subscription.

One-click Jupyter Notebooks
ChatGPT in your cells
Professional tickmarks and highlights

Get MyToolBelt free

Windows only. Excel 2010 or later. No credit card.

A quick look at the MyToolBelt tab

See it in action

The whole tab: Python, ChatGPT and the formatting tools.

Three tools in one add-in

Excel to Python in one click

Select a range and get a ready Jupyter notebook or Pandas DataFrame. No exporting, no typing the import code.

ChatGPT in your cells

Ask a question, analyse a range, or have a formula written for you, right in Excel. It uses your own OpenAI key, so you stay in control.

Sheets that look finished

Audit tickmarks, colour highlights, pictures in comments, your own icons. The touches that turn a working sheet into something you can hand over.

Who it is for

Anyone who wants more from Excel without another subscription.

Data analysts

Summaries and notebooks without leaving Excel

Finance professionals

Audit tickmarks and highlighted key figures

Business owners

AI answers from your sheets, no coding

Consultants

Polished sheets you can hand to a client

Python learners

Excel data as a DataFrame, ready to explore

Excel power users

The tools Excel should have had from the start

Compared with other add-ins

	ASAP Utilities / Kutools	AI add-ins (TwistlyCells, GPTExcel)	MyToolBelt
AI / ChatGPT	No	Yes	Yes, with your own key
Python / Jupyter	No	No	Yes, one click
Tickmarks and formatting	Yes, 300+ tools	No	Yes
Your own icons	Limited	No	Yes, up to 20
Price	$49 once	$7 to $30 a month	$69 once
Subscription	No	Yes	No
Free version	Partial	Limited trials	Yes

ASAP Utilities and Kutools are good formatting toolkits, but they have no AI and no Python. The AI add-ins bill you monthly and only do formulas and text. MyToolBelt is the only one with AI, Python and formatting together, for one payment.

A Jupyter notebook from any range

Select the cells, click once, and a notebook opens with your data already loaded as a Pandas DataFrame. No exporting to CSV, no import code to type.

Ask ChatGPT inside Excel

Ask a question, get an explanation, or have it look at a range and tell you what it sees. The answer appears in your sheet. No switching windows, no copy-paste.

Reviewers see what you checked

Add tickmarks, colour boxes and highlights in a click. Reviewers see what you checked and what needs attention, without reading every cell.

Pictures inside comments

Put a screenshot or a photo into a cell comment. Handy for explaining a number, showing a receipt, or documenting a change.

Your logo as an icon

Turn any image into an icon you can drop into every sheet: your logo, a team symbol, a status marker. Made once, always one click away.

What users say

Still using it years later

“I got to know Sven through a YouTube video about 2 years back. I purchased his Excel add-in after watching that video. I still use it and moreover, I am watching every new video he is posting on his channel.”

Chip SoldanSee review

Worth every penny

“Worth every penny! It made working with Excel and Python a lot easier, this week I also bought Emojify and I’m already inclined to purchase the Dashboard add-in!”

Guilherme ApolinárioSee review

Top-notch add-in

“I’ve been using MyToolBelt for a while now and I must say, it's a top-notch add-in! The quality of the software is outstanding and it truly makes a difference in my workflow.”

Patricio BallesterSee review

See all reviews

Free to start. One payment for everything.

Prices in USD. No subscription.

Free

forever

No credit card

3 tickmarks
1 custom icon
Run Python files from Excel
Basic AI, 5 formulas per sheet
Table of contents gallery
Jupyter notebooks and DataFrames
Highlights and pictures in comments

Get the free version

Lifetime license

Pro

$69

one time

Every future update included

11 tickmarks: add, position, remove
20 custom icons
Run Python files from Excel
Full AI with your own settings, unlimited
Table of contents gallery
Jupyter notebooks and DataFrames
Highlights and pictures in comments

Get Pro

14-day refund, no questions asked. If it is not for you, email me and you get your money back.

One Pro license covers 3 of your own computers.

Frequently asked questions

Excel 2010 and later, including Microsoft 365, 32-bit and 64-bit. It needs the desktop Excel on Windows. Excel in the browser and Excel for Mac are not supported.

No. MyToolBelt is Windows only.

Yes, any time. Buy a license key, open the MyToolBelt tab in Excel, click Upgrade, paste the key. No reinstall. Everything unlocks in place.

Only for the AI features. Get one at platform.openai.com. OpenAI bills you for what you use, separately. The Python and formatting tools need no key.

The cells you select go to OpenAI, using your key, the same as typing them into ChatGPT. The Python and formatting tools send nothing anywhere.

Select a range and click Notebook or DataFrame. You get a .ipynb or .py file with your data already loaded in Pandas. You can also run your own Python files from Excel. It works with whatever Python you already have installed.

Three of your own.

Copilot is $30 a month ($360 a year), needs Microsoft 365, and has no Python and no tickmarks. MyToolBelt is $69 once and has AI, Python and formatting in one. If you only want an AI helper, Copilot is good. If you also want Python and formatting without a monthly bill, MyToolBelt is the better fit.

You can, but you copy the data out, paste it into the chat, wait, and copy the answer back. MyToolBelt does it inside Excel: select a cell, ask, and the answer appears there.

MyToolBelt uses OpenAI, so the cells you select do leave your machine. If you need AI that runs fully offline, have a look at XLlama. It runs open-source models on your own computer through Ollama.

Yes, within 14 days, no questions asked. Use the form below or email sven@pythonandvba.com.

Still have a question?

I’m Sven, the developer, and I usually reply within a day.

Try it free today

Python, ChatGPT and the formatting Excel forgot, in one tab. Free version, no time limit.

Get MyToolBelt free

MyToolBelt is an independent product by Bosau Digital LLC. It is not affiliated with, endorsed by or sponsored by Microsoft or OpenAI. Microsoft, Excel, Copilot and Microsoft 365 are trademarks of the Microsoft group of companies; ChatGPT is a trademark of OpenAI.