SidShetye

function listFolders(folder) {
     var sheet = SpreadsheetApp.getActiveSheet();
     sheet.appendRow(["Name", "Sharing Access", "Sharing Permission", "Get Editors", "Get Viewers", "Date", "Size", "URL", "Download", "Description", "Type"]); //writes the headers
     
     //var folder = DriveApp.getFolderById("INSERT_YOUR_FILE_ID");//that long chunk of random numbers/letters in the URL when you navigate to the folder
     //getLooseFiles(folder, sheet);
     //getSubFolders(folder, sheet);
  
     //instead of getting folder by ID rather get all folders and cycle through each. Note this will miss loose files in parent directory.
     var folder = DriveApp.getFolders()