Export to .obj only x-bytes size and no model

[micheus]

xelawebdev, I notice some strange things in your project:
- the brick object was converted into a mesh light (Area Light);
- the brick material has an image assigned, but the brick was not uv mapped;

What I did:
- selected the brick in Body selection mode [B] and used the option Area Light to Object;
- select each face set of the brick for front, left, right,... and applied the UV map to them (using Orthographic view and unfolding using Camera Projection; then I scaled and rotate the mesh as needed to fit it onto the bitmap;

After that, I used Export to Wavefront and I notice that all file was generated correctly.

Here are the files: Wings3d-Brick.zip

Check what you are doing wrong in order to avoid this kind of headache.