im new in this program.. and im wonder how to save a file ? i stuck with this thing lots of time till found this forum. so.. how to save file? can some one tell me ?

Push the right button on the code window: "Copy to executable-> Selection". Right button again and chose "Save file" (or you can try to close the last window and Olly will ask...).

It's not a stupid question. This can get really frustrating at times.

If you have made some minor edits like change a JNZ to JMP or fill something with NOPs then when you right click in the code window and click on copy to executable you will have two options, either selection or all modifications. If you want to save your modified file click on all modifications. If you haven't made any edits the all modifications option will not appear.

If you want to dump from memory and save an unpacked file you will need the olly dump plugin.