This document discusses what items should be kept in employee files and for how long. Key items to retain include the offer letter, resume, social insurance number, contact information, time sheets, T4 slips, performance reviews, records of pay changes, and training documents. According to regulations, payroll and tax documents must be kept for 6 years, while other files should be retained for 3 years after an employee's departure. Maintaining proper documentation is important for tax purposes, proving employment terms, and resolving any potential disputes.