Transferring data from paper formats into computer files or database systems. Typing in data provided directly from customers. Creating spreadsheets with large numbers of figures without mistakes. Transfer data from paper formats into computer files or database systems using keyboards, data recorders or optical scanners. Type in data provided directly from customers. Create spreadsheets with large numbers of figures without mistakes. Verify data by comparing it to source documents. Update existing data. Retrieve data from the database or electronic files as requested. Perform regular backups to ensure data preservation. Sort and organize paperwork after entering data to ensure it is not lost.