Launch a custom App Designer application when opening a file.
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I am looking for a way to program my data files, that I generate and save via a custom App Designer application, in such a way that they can launch the custom App when the data file is accessed via Windows Explorer. The behavior that I am trying to simulate would ideally be similar to opening a MATLAB file type such as a *.fig or *.mat file from WinExplorer when MATLAB has not yet been launched. In this case, MATLAB will launch first and then continue to open the original file.
My custom App generates and saves files, but I would like to have accessing the *.mat files (or other file type if better suited) launch the custom App if it has not already been done. I honestly have no idea where to begin for this type of programming, if it is even possible in MATLAB.