W3Schools Tryit Editor

{
 '__header__': b'MATLAB 5.0 MAT-file Platform: nt, Created on: Tue Sep 22 13:12:32 2020',
 '__version__': '1.0',
 '__globals__': [],
 'vec': array([[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]])
}