**System Information**
Operating system and graphics card
**Blender Version**
Broken: 2.77
Worked: 2.76b
**Short description of error**
When I try to export an object as an .stl file blender is exporting all the objects in the file even those on different layers.
**Exact steps for others to reproduce the error**
Based on a (as simple as possible) attached .blend file with minimum amount of steps
open a .blend file with multiple objects, select one object and, export it as a .stl and, open the .stl in another program (in my case a slicer for 3D printing).