How to load a variable into the workspace not as a structure into a GUI?

Hi everybody, I'm developing a GUI and I need to load a variable into the workspace. I'm using the "assignin" function but it generates a struct variable. This is my code:

function popupmenu1_callback(hObject, eventdata, handles)
         asset = 'XYZ';
         assignin('base',asset, load('XYZ.mat'));
end

the output is XYZ struct variable. Thus, to get my data I must do XYZ.XYZ . How can avoid that and to get directly the XYZ variable (not like a struct)? Many thanks!

[Stephen23]

As Jan Simon mentioned, making variables magically appear in other workspaces is not recommended. Doing so will make your code slow, complex, buggy, and hard to debug. Read this to know why:

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

Answer 1

[Jan]

Remember, that the remote controlled creation of variables in another workspace is a bad programming style. I would avoid this strictly, but store the data inside the figure and use it from there.

But if you really want to do this:

asset = 'XYZ';
Data  = load('XYZ.mat');
assignin('base', asset, Data.(asset));

[Adriano]

Many many thanks Simon!! It works.