- XER: XER files are the native file format for P6. They can be used to exchange projects between different P6 databases, regardless of the version of P6 used. XER files store all project data, including activities, resources, relationships, and constraints.
- PLF: PLF files store layout information for P6 projects. This includes the position and formatting of activities on the project schedule. PLF files can be exchanged between different P6 databases, regardless of the version of P6 used.
- ANP: ANP files store the position of activities in an activity network. This can be useful for importing and exporting activity network diagrams.
- ERP: ERP files store reports for P6 projects. This includes both standard and custom reports. ERP files can be exchanged between different P6 databases, regardless of the version of P6 used.
- XML: XML files are a standard format for exchanging data between different software applications. P6 can import and export XML files for a variety of purposes, such as exchanging data with Project Management software.
- PCF: PCF files store global changes for P6 projects. Global changes are changes that are applied to all activities in a project. PCF files can be exchanged between different P6 databases, regardless of the version of P6 used.
- VLF: VLF files store Visualizer layout information. Visualizer is a P6 module that allows users to create and view interactive project schedules. VLF files can be exchanged between different P6 databases, regardless of the version of P6 used.
