December 2025: Aurora-Viewer, Free Primavera P6 XER File Viewer UPDATE

The free Windows-based viewer for Primavera P6 XER files, Aurora-Viewer, has been improved again.

Aurora-Viewer allows users to open and view Primavera P6 schedules in the “.XER” file format, without needing a full Primavera license; for free.

Aurora-Viewer notable features include:

  • Gantt Charts
  • Tabular / spreadsheet view
  • Single-element view

The latest version (updated 12/29/25) of Aurora-Viewer:

  • shows the project overview report by default after the user imports a .xer file with additional information including:
    • a ‘minimum non-zero duration’ row has been added to the ‘activity details’ section
    • a ‘zero duration jobs not marked as milestone’ row has been added to the ‘job types’ section
    • a ‘calendars’ section has been added
  • the constraint display configuration option is now available in all graphical views
  • legend option is turned on in all views
  • zoom functions are turned on in all graphical views

The installation includes a “videos” subfolder with demonstration videos. The Single-Element-Display video provides helpful guidance for navigating and understanding your schedule.

You can access Aurora-Viewer here.

We are continually improving Aurora-Viewer and welcome your suggestions and feedback.

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