title: Batch save all opened files in GIMP .xcf
body: <p>I have a series of manually edited images and layers in GIMP, each set is in a single tab. All want to save all of them into different <em>.xcf</em>'s. </p>
  
  <p>I am aware of some scripts to export them as images (like <a href="https://stackoverflow.com/questions/9452923/save-as-on-multiple-files-at-once-gimp">this one</a>), but I want to save them as <em>.xcf</em>, not export the images. Moreover, I would like to have them in a single folder, so that I can load them all in the future.</p>
  
  <p>Is there any script to do this?</p>