How i can export user IDs who twitted a web page ? is there any script or API for it ?
There is no way that you can export your tweets to excel or some other format. There is a way that you can connect your account to a service which backups all social media contents in one place.
https://www.frostbox.com you can go there and backup your tweets and then sending them a support email to email or provide download link of your tweets in many formats like pdf,json,excel, csv etc.