Office staff responsibilities include performing clerical and administrative duties for an office. Clerical duties support the day-to-day operations of an office, including answering phones, sorting mail, scheduling meetings, and business trips, welcoming visitors, and filing documents. An office worker, also known as a receptionist, secretary or office clerk, performs many tasks to ensure that an office runs smoothly. These include answering phones and emails, collecting and providing information, imputing data, making copies and filing records.