Matlab standalone application replacing my R-package

I developed an R-package requiring many people to install R and R-studio and some dependencies. I want to simplify that and produce either the Matlab standalone executable or the Excel-add in. The function is a computing-demanding heuristics, taking a considerable amount of time (minutes to hours, depending on the problem size). For this purpose, which one of the two options would you recommend? The typical user has the input data in Excel (a couple of matrices), and the output consists of two matrices to be again saved in Excel. Of course, I will do all the programming in Matlab, focusing on efficiency. There are no additional libraries or dependencies; the code consists of 6 shorter routines, and I can make that one longer Matlab file. I understand that I will need to purchase the extra Matlab compiler. Thank you.

[Rik]

I would personally choose to create a stand-alone Matlab executable, but I am obviously biased. Would an excel add-in also be able to provide visual feedback on progress?

[Milan Lstiburek]

Thanks, I am too inclined towards the stand-alone. Thanks for your feedback.