Rust core
A single Rust engine replaces the .NET-based v2.x/v3.x core, with
no unsafe code in the public path.
This content is for v4.x (Alpha). Switch to the
Stable version.
openxml-office (v4.x Alpha)
Rust rewrite · Cross-language alpha
openxml-office v4.x
A complete rewrite of openxml-office in Rust, with cross-language
bindings shipped through each ecosystem's own package manager. Very much
in active development — APIs, docs and language support are still
evolving.
What's new in v4.x
Cross-language bindings
Stage 1 ships native packages for .NET and Python through a Rust FFI layer. Go, TypeScript and Java land in Stage 2.
Consistent behaviour
Because every language calls the same Rust core, output stays identical across .NET, Python and friends.
Office 2007+ compatible
The output targets Microsoft Office 2007 and newer, broadening compatibility versus the earlier release lines.