My Cloud Home

Hello Friends,
As you know, I will not be able to upgrade from OS 3 to OS 5, with my Cloud Home device. I would like to keep on using it as a simple external hard disk. Is this possible, and what is the process?
I sure appreciate your help.

If it’s a my cloud home it’s neither on OS3 nor OS5.

I made a mistake. it’s actually a WD MY Cloud. I will lose website access on April 15. I believe I can use it as an external drive.