How to move files from device to external sd card in lollipop without root topic

Im not sure if this is a lollipop only solution but if you use the built in file manager called "My Files" you are able to use this method to bypass the restriction third party file managers have of not been able to write to the external sd card. I only mention this because searching via google most people send to use a program called "b1" which has the restriction of only being able to write to that created b1 folder on the sd card.
i'm mainly talking files that where downloaded To the external device rather than game data files which need a link app to successfully move and keep working.