Deploy XLlama to Windows Excel: IT Installation Guide

For most users, use the regular XLlama installer. The IT ZIP is for administrators who deploy software through approved company tools.

Download the XLlama IT deployment ZIP. It includes the compiled add-in, install/removal scripts, checksums and a README. Ollama, models and Microsoft prerequisites are installed separately.

What IT needs to prepare #

Desktop Excel 2016 or newer on 64-bit Windows. The script chooses the payload for 32-bit or 64-bit Excel.
.NET 10 Windows Desktop Runtime matching Excel’s bitness, and Microsoft WebView2 Runtime.
Ollama and a downloaded local model for AI features.
Approval for the unsigned add-in files and deployment scripts under the company’s policies.

The ZIP avoids running XLlama-Setup.exe. It does not bypass restrictions on scripts, XLL/DLL files or local AI. Do not disable Office protections or bypass PowerShell execution policy. IT should use its approved signing, allowlisting and file-trust process.

Install for a user #

Download the ZIP and verify its SHA-256 against the checksum file on the release page. Extract the entire ZIP to a local staging folder.
Install the prerequisites. Save work and close Excel.
In 64-bit Windows PowerShell 5.1, open the extracted folder and run:

.\Deploy-XLlama.ps1 -Action Install

Run as the intended Windows user, not SYSTEM or a service account. For managed deployment, select user installation context. The add-in itself does not need administrative elevation.

The script verifies the bundle, copies it to %LOCALAPPDATA%\Programs\XLlamaIT and adds one Excel registration entry without replacing other add-ins. Open Excel and use the XLlama ribbon. Finish model setup using the getting-started guide.

Check, update or repair #

.\Deploy-XLlama.ps1 -Action Check

Check returns JSON and exit code 0 when the expected XLL exists and is registered, or 2 when it is not installed correctly. Install and Uninstall return 0 for success or 1 for an error.

To update, extract the latest ZIP into a fresh folder, close Excel and run -Action Install again. Reinstalling the same intact build makes no changes. A new or repaired build is verified before registration changes; earlier payloads stay until uninstall. Saved chats and settings remain in place.

For centrally managed updates, leave automatic update checks off, which is the default. IT should distribute the next ZIP. The in-app download button links to the regular EXE installer. If switching from that installer to IT deployment, remove the EXE edition with its own uninstaller first; do not register both editions for the same user.

Uninstall #

Close Excel, then run from an extracted bundle:

.\Deploy-XLlama.ps1 -Action Uninstall

Alternatively, remove XLlama (IT deployment) in Windows Settings → Apps → Installed apps. The uninstall command uses PowerShell and must be permitted by company policy.

Uninstall removes this deployment’s files and Excel registration. It keeps chats, settings, license and usage records in %LOCALAPPDATA%\XLlamaDesktop\Data, along with Ollama and its models. The script never closes Excel or deletes user workbooks.

What is visible in the ZIP? #

The C# source project and repository history are not included. The deployment scripts and the task pane’s HTML, CSS and JavaScript are readable. Compiled .NET assemblies can also be decompiled, just as with files installed by the EXE. The package contains no developer credentials, customer license keys or saved chats.