Model upside down when exported

Hello, I have a small question. When I export my newly created model, the exported file is upside down. What I mean by that is when I open the exported file in a 3D viewer, the model is upside down, and it’s harder to rotate around. How can I force the model to be correctly rotated?

 

Thanks a lot for your help

If it is rotated then set 90 degrees rotation for one of these axies:

Also, you can try different Transformation presets (according to where you want to open your model):

It works better now! Simple as that! Thanks a lot!