title: Files downloaded from Facebook are saved as "downloadfile-x.bin" on my Xiaomi Redmi Note 8T?
body: <p>For example I'm trying to download <strong>xyz.pptx</strong> from a <strong>Facebook group</strong>.</p>
  
  <ul>
  <li><strong>Everything works</strong> when I do it on my <strong>PC</strong>,</li>
  <li>but on my <strong>Xiaomi Redmi Note 8T</strong>, in the <strong>Downloads</strong> it's shown as <strong>xyz.pptx</strong>, but its file type isn't recognised (Question mark icon), and can't be opened with any app.</li>
  </ul>
  
  <p>Files downloaded via <strong>Chrome</strong> or even from <strong>Facebook Messenger</strong> are saved correctly.</p>
  
  <p>I copied the download link on my phone, and opened it on my PC and it correctly downloads it as xyz.pptx.</p>
  
  <p>It seems like it <strong>doesn't finish</strong> (though I receive that notification the it has finished)</p>
  
  <ul>
  <li>because it's in <strong>storage/emulated/0/Download</strong> folder, and when I share it via Gmail, the file is called <strong>downloadfile-21.bin</strong>.</li>
  </ul>
  
  <p>After I <strong>rename</strong> it to <strong>xyz.pptx</strong>, it works.</p>
  
  <p>Why does this happen?</p>