How to get my file back in 2.79 after saving with 2.80 series? I was experimenting with a file in 2.8 and accidentally saved it.
When I opened it back in 2.79 I can't see my model. It disappeared with the error

File written by newer Blender binary.

How can I get my model? I can see my model in 2.8 but nothing in 2.79. I tried to export it  in .obj, but I lost all my modifiers, material and camera setting.
Restore your file from a backup. Check whether there is still a .blend1 or .blend2 next to your .blend, or pick a backup from another source.

If you didn't make backups before using a Blender 2.80 beta, you'll probably have to manually restore by trying to copy-paste bits and pieces between 2.80 and 2.79.

Note that the download page said Do not use in production nor save important files with it for a good reason.