Free · in your browser · no upload

Free online XER viewer

Open a Primavera P6 .xer or P6 XML file, or an MS Project XML file, and see the whole programme in your browser: the activities and WBS, the dates and float, the critical path in red and the logic between the bars. No P6 licence, nothing to install, and the file never leaves your computer.

  • FREE
  • RUNS IN YOUR BROWSER
  • NO ACCOUNT NEEDED
  • NOTHING UPLOADED
An XER file from Primavera P6 open in Programme Studio's free viewer: the WBS, the activities with their dates and float, and the Gantt chart with the critical path in red

How to open an XER file without Primavera P6

1

Open Programme Studio

It runs in your browser: nothing to install, no account and no upload.

2

Drop your file on it

A Primavera P6 .xer or P6 XML file, MS Project XML or .mpx, or an Excel or CSV schedule. Or use Open.

3

Read the programme

The activities, WBS, dates, float and the critical path in red, with the logic drawn between the bars.

There is a longer walkthrough in the guide Open an XER file without Primavera.

What you see

The critical path and float

Rescheduled the way P6 does it, on each activity's own calendar, with total and free float and the driving logic. Filter to the critical path in one click.

WBS, codes and user fields

The work breakdown structure as a tree, every activity code and user-defined field as a column, and bars coloured by code, trade or WBS.

Calendars and progress

Each calendar's working week, holidays and exceptions, the data date, actual dates and the remaining durations, just as they were saved.

Network and calendar views

The logic as a network diagram, and a month calendar of what is on when.

Why this date?

Select an activity to see what drives it: its predecessor, a constraint, its calendar or progress. Schedule checks flag open ends and hard constraints.

Print it

An A4 or A3 PDF or PNG of the Gantt chart with a title block, fitted to the page or the width.

Frequently asked questions

Is the XER viewer free?

Yes. Opening and viewing XER, P6 XML and MS Project files of any size is free in Programme Studio, with the critical path, filters, the network and calendar views and A4/A3 printing. There is no account to make and nothing to install.

Is my file uploaded?

No. The file is read by your browser on your own computer and is not sent anywhere. The only exception is an MS Project .mpp file, which a browser cannot read: Programme Studio then asks whether to convert it on Metre2's server, in memory, and nothing is kept.

Which XER files does it open?

XER exports from Primavera P6 Professional and EPPM, with their calendars, WBS, activity codes, user-defined fields, resources and progress. If a file holds several projects, it opens the main one. P6 XML exports open too.

Can it open MS Project files?

Yes: MS Project XML (Save As > XML in MS Project) and .mpx open directly, and .mpp files can be converted if you agree. Excel and CSV schedules open with their columns matched automatically.

Does it show the same dates as P6?

It reschedules with the same critical path method: a forward and backward pass on each activity's calendar, retained logic or progress override, and float measured as P6 does. Its tests compare the dates with the ones P6 and MS Project saved in their own files.

Can I edit the programme or save it as an XER?

You can edit programmes of up to 50 activities free, and save them as .m2prog or CSV. Programme Studio Pro edits programmes of any size and saves back to P6 XER and XML, MS Project XML, MPX, Excel and IFC, with a 7-day free trial.

Do I need Primavera P6 to open an XER file?

No. An XER is a text export of a P6 database. Programme Studio reads it directly in your browser, so you can review a contractor's or subcontractor's programme without a P6 licence.

Open your XER file now