This sections is dedicated to opening up a file within OPTIM.
Open a New File Button
Clicking on this button will open the window file dialog window. Navigate to the file you want to customize and optimize within OPTIM and click open. Alternatively, if you have the window natively opened, you can simply drag the file onto the button.
When you have successfully imported a file through OPTIM, the file will appear in the File History area. Clicking on the file here will open that file again.