Blog
Thoughts on Excel add-ins, Luau scripting, and building xllify.
XLL security: what you need to know
XLLs are powerful but come with a trust model worth understanding before you distribute one.
One codebase, two runtimes
How xllify runs the same Luau function code in both a native XLL and an Office Add-in.
How xllify uses Claude to suggest code
How xllify uses Claude models to generate Luau function code inside the Assistant.
Why Luau?
Why xllify uses Luau as its function implementation language, and why not Python, JavaScript, or C#?
Hello, world
Introducing xllify - build Excel custom function add-ins in Luau or with AI code assist, no C++ or JS required.