Install
Add Cellm to Excel
Requirements
Cellm requires Windows 10 or higher, Excel 2010 or higer, and the .NET 9.0 Runtime.
Install Excel
Install Excel
- Open “Microsoft Store” on your computer and search for “Microsoft 365”
- Click “Install” and follow the install procedure. Requires a Microsoft 365 subscription.
Install .NET 9.0 Runtime
Install .NET 9.0 Runtime
- Go to https://dotnet.microsoft.com/en-us/download/dotnet/9.0.
- Find the “Windows” row and “Installers” column in the ”.NET Runtime” table and click on
x64to download the installer. - Run the installer.
Install
Cellm is an add-in to the Excel desktop app. Follow these steps from top to bottom to add Cellm to Excel and run a local AI model.
Download Cellm
Download Cellm
- Go to the Github Release page.
- Download
Cellm-AddIn64-packed.xllandappsettings.jsonand put them in the same folder.
Trust Location
Trust Location
- In Excel, go to File > Options > Trust Center > Trust Center Settings > Trusted Locations.
- Click on
Add new location..., thenBrowse..., and navigate to the folder withCellm-AddIn64-packed.xllandappsettings.jsonin it. ClickOK.
Install Cellm
Install Cellm
- In Excel, go to File > Options > Add-Ins.
- In the
Managedrop-down menu, selectExcel Add-insand clickGo.... - Click
Browse...and navigate to the trusted folder withCellm-AddIn64-packed.xll. Select it and clickOK
Install Ollama (optional)
Install Ollama (optional)
If you want to use the more powerful hosted models right away, you can skip this step. The Hosted Models section shows you how.
To get started, we recommend you try out the Gemma 2 2B model.
- Download and install Ollama. Ollama will start after the install and automatically run whenever you start up your computer.
- In Excel, select a cell and type out the formulas
=PROMPT("Which model are you and who made you?"). The model will tell you that is called “Gemma” and made by Google DeepMind.
Gemma 2 2B is a wonderful little model will run fine on your CPU, ensuring no data ever leaves your computer. And its free. Who knows, perhaps you will also discover the joy of running open source LLMs on your own machine!
Cellm will automatically instruct Ollama to download Gemma 2 2B the first time you call =PROMPT(). The first prompt will therefore take a while.
Uninstall
Uninstall Cellm
Uninstall Cellm
- In Excel, go to File > Options > Add-Ins.
- In the
Managedrop-down menu, selectCOM Add-insand clickGo.... - Uncheck
Cellm-AddIn64-packed.xlland clickOK.
Excel will not load Cellm next time you start it.
Untrust location
Untrust location
In Excel, go to File > Options > Trust Center > Trust Center Settings > Trusted Locations and remove the folder with Cellm-AddIn64-packed.xll in it.
Remove from list of Add-Ins (optional)
Remove from list of Add-Ins (optional)
To also remove the unchecked Cellm-AddIn64-packed.xll entry from the Add-Ins list, follow these steps:
- Delete
Cellm-AddIn64-packed.xllfrom your disk. - Restart Excel and go File > Options > Add-Ins.
- In the
Managedrop-down menu, selectCOM Add-insand clickGo.... Excel will ask you if it should remove theCellm-AddIn64-packed.xllentry from the list of add-ins. - Click
Yes.
Next steps
Prompting
Learn how to use Cellm to automate repetitive tasks in Excel.
Function Calling
Learn how to use Excel as a low-code task orchestrator by enabling Cellm to access external tools and data.
Local Models
Learn how to run models on your own computer. No data ever leaves your machine. And it’s free.
Hosted Models
Learn how to bring your own API key (BOYK) and use models from Anthropic, OpenAI, and others.