How do I associate files with a specific standalone compiled application developed in GUIDE on Windows?

I have built a standalone application using GUIDE

my compiled application, myApp.exe saves some data.mat as data.myapp files

I can open my application and load the data.myapp as mat files with no problems

these data.myapp files are associated to my standalone applications: so what I am trying to do is that when I double click on the data.myapp I want my application to open and load the data.myapp file as .mat data

I have already associated .myApp files to open myApp.exe (my standalone exe), but I am unable to get the data loaded in the application. I am getting the following error: "error: too many input arguments"

my main file is a function main (varargin) so it should be able to get varargin as input

can anyone help me with this issue please?

many thanks in advance