it does not display any of each folder and file on your drive.
function findSharedFolders() {
var email = "unwanted-address@gmail.com";
var body = DocumentApp.getActiveDocument().getBody();
body.appendParagraph(email).setHeading(DocumentApp.ParagraphHeading.HEADING1);
var folders = DriveApp.searchFolders("'"+email+"' in writers"); while (folders.hasNext()) unshare_(folders.next(), body, email);
var files = DriveApp.searchFiles( "'"+email+"' in writers"); while ( files.hasNext()) unshare_( files.next(), body, email);
}
function unshare_(file, body, email) {
var para = body.appendParagraph(file.getName());
try { file.removeEditor(email); }
catch (e) { para.setLinkUrl(file.getUrl()); para.appendText(" (" + e + ")"); }
}
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