The MPP is one of the primary formats of Microsoft Project often utilized to store workloads, schedules, and finances. Since the early release of the Microsoft Project in 1984, it is being used to manage projects, develop schedules, set budgets, and allocate resources. Therefore, MPP format is the native file type associated with Microsoft Project and stores project information when saving a project. Similarly, the XER file format is a proprietary project file format used by the Primavera P6 project planning and management application.