How to open a unity scene file in an older version of unity

I have an a project that has I level that I designed.
The scene looks really good, but the problem is that I can’t open it in my older version project.
The unity scene of the level is in unity 5.5.0f3 and I want to open it in Unity 5.3.4.
I get this when I open the file
Failed to load ‘Assets/alps.unity’ because its serialized file version is higher than what this version of Unity supports.
How can I open it?
Let me know.

Unity projects are not backwards-compatible. So if you’re developing across multiple machines, you need to use the same version of Unity (i.e. 5.5.0f3) on each.