where I can find the hex file?

I do a sketch , where I can find the file .hex?
I want program the micro with avrstudio

Open the IDE preferences, then select verbose mode.
When you compile or upload ( whatever option you select ), it will display the path to the temporary folder.

The output window should finish with something like this:

Binary sketch size: 8,864 bytes (of a 258,048 byte maximum)

This is on windows, I presume the other platforms are the same.

now I try!

C:\Users\Elvis\ ...

Elvis has returned!