File.npy write as mode 'a'

Does a .npy file allow the write mode ‘a’? For example ,i have stored an array ‘data1’ in 0.npy, could i also store another array ‘data2’ in ‘0.npy’? If i just use np.load() then the data1 will be lost

Based on this topic it seems does not directly support it but some users have posted potential workarounds.