MATLAB Builder EX
The VBA wrapper code can be modified in Excel, while the underlying MATLAB application is hidden from the end user. The builder also provides an API for automatic conversion between Excel and MATLAB data types.
The components created by the builder run against the MATLAB Compiler Runtime (MCR), the full set of libraries that supports all features of the MATLAB language and most related toolboxes. The MCR is provided with MATLAB Compiler. To run your add-ins, you must distribute the MCR with them. Add-ins created with MATLAB Builder EX and the MCR can be deployed royalty-free.