Shifenzheng.bak

If you maintain a PHP/Python script that exports user data, ensure the temporary file is deleted immediately after the download is sent ( unlink() or os.remove() ).

name,id_number,address Zhang San,110101199003077654,Beijing Li Si,440304198512150012,Shenzhen shifenzheng.bak

It sounds like you’re asking for a based on the filename "shifenzheng.bak" . If you maintain a PHP/Python script that exports