title: Rename file name in Google Sheets with Google Apps Script
body: <p>I'm finding information on how to change sheet names and even naming and placing copies of files in Drive but is there any simple way to just have the string in a cell be added to the file name (no copies, just replacing the current one)? I have a script to clear certain cells, and this cell would be included so it's planned that this file name would then go back to the default title after the clearing. Sorry for not having any example to share because I'm not sure what I should start with.</p>
  
  <p>To clarify: The reason for this is because we download the sheet after we're done filling it out and then clear it for the next task. This would be just to help automate the task of adding a case number to the file name for example.</p>