How to Open an XER File
ScheduleReader opens Oracle Primavera P6 .xer and XML files without a database connection and without a P6 license.
Three steps
Open an XER File in ScheduleReader
No database connection. No Oracle license. No learning curve. Your schedule data is viewable in under 3 seconds.
Download ScheduleReader
Get the free 15-day trial. The installer is under 100MB and includes every PRO feature.
Install and Launch
Run the installer on Windows or Mac. No database setup or configuration is needed.
Open Your .xer File
Go to File - Open, select your XER or XML file, and view your full schedule instantly.
Two ways
Open an XER File with ScheduleReader: the App or the Browser
Same .xer export, same read-only answer. The app reads the file from disk; ScheduleReader Online reads the copy you upload.
Windows or macOS App
Install the 15-day trial and open the file from disk: the full viewer, the reports and the PRO views, on or offline.
Get the free trialIn the Browser
Upload the .xer to ScheduleReader Online: the Gantt, the WBS and the activity table, with nothing to install.
Open it in the browserTroubleshooting
The XER File Won't Open: Four Fixes
Most failures come down to one of these four. Work through them in this order.
Written by a Newer P6
The XER header records the version that wrote it, and a much newer P6 can write tables an older reader does not know. Open it with a current build.
Never Finished Writing
A file copied mid-export, or one that passed a mail scanner or a zip, ends mid-table. Re-export and use the new file.
Garbled Characters
Non-ASCII project or activity names can break when the export encoding and the reader disagree. Re-export as P6 XML, which opens the same way.
Not Really an XER
Check the first line: a genuine file starts with ERMHDR. One starting with <?xml is a P6 XML export that was renamed - open it as .xml.
Watch it
Watch an XER File Open in ScheduleReader
Two minutes from the file to a live schedule - the activity table fills, the Gantt follows, and the critical path is already marked.
From .xer File to a Working Schedule
No database connection and no import dialog. ScheduleReader reads the file directly and builds the views from it while you watch.
- Loads directly from the file
- Critical path and relationships in place
- Opened read-only - nothing written back
Why ScheduleReader
The Best Way to Open XER Files
ScheduleReader is purpose-built for project teams who need fast, reliable access to Primavera P6 schedule data.
Opens in Seconds
Load massive XER files instantly. No database connection is required - it reads directly from the file.
Zero Learning Curve
Mirrors the Primavera P6 interface. If you know P6, you already know ScheduleReader.
Read-Only Access
Your original schedule is never modified. Share it with stakeholders without risking data integrity.
More Than a Viewer
Filter, group, sort, compare baselines, trace logic and generate DCMA 14 reports, all built in.
Fraction of P6 Cost
Starting at $344 per year, against thousands for a P6 license. Give your entire team access for less.
Windows and Mac
Native applications for both platforms. Enterprise MSI deployment is available for large teams.
Go further
Go Beyond Just Opening the XER File
ScheduleReader replaces static PDF printouts with interactive, dynamic schedule analysis.
Interactive Gantt Chart and Critical Path
Visualize your entire schedule through the Activities, WBS, Resource and Project views. Navigate relationships, track the critical path and use Trace Logic to understand exact dependencies - without altering the original P6 file.
- Activities, WBS, Resource and Project views
- Critical path and relationship navigation
- Trace Logic for exact dependencies
Progress Update: Field-To-Office Collaboration
On-site team members propose activity updates directly in ScheduleReader. Schedulers review and import the structured updates back into P6, removing hours of manual data entry and email chasing.
- Site teams propose updates without a P6 seat
- Schedulers review before importing
- No manual re-entry, no email threads
DCMA 14 Schedule Health Assessment
Audit schedule quality against the industry-standard DCMA 14-point assessment. Identify missing logic, excessive lags and hard constraints that jeopardize the project, all presented in a clean visual dashboard.
- Industry-standard DCMA 14 metrics
- Missing logic and excessive lags flagged
- Presented in a visual dashboard
Comparison
Opening XER Files: P6 vs ScheduleReader
See why thousands of teams choose ScheduleReader to view their Primavera schedules.
| Capability | Oracle Primavera P6 | ScheduleReader |
|---|---|---|
| Open .xer files | Yes | Yes |
| Open .xml files | Yes | Yes |
| Requires database connection | Yes | No |
| Requires Oracle license | Yes ($$$) | No - from $344/yr |
| Setup time | Hours | Under 2 minutes |
| Read-only (safe sharing) | No - editable | Always read-only |
| P6 look and feel | Yes | Yes - 100% match |
| Mac support | No | Yes - native app |
| Silent MSI deployment | Complex | Yes - Enterprise ready |
Pricing detail: Standard and PRO.
Testimonials
Trusted by Project Professionals Worldwide
From P6 instructors to project controls managers - why they stopped printing schedules to PDF.
FAQ
Everything You Need to Know About Opening XER Files
What Is an XER File?
An XER file is the native export format used by Oracle Primavera P6 project management software. It contains the complete project schedule data - activities, calendars, resources, WBS structures, relationships and cost data - stored in a structured text format across 20 to 66 data tables depending on project complexity. XER files are the standard format for exchanging schedule data between P6 databases and between project stakeholders.
How Do I Open a .xer File?
Download ScheduleReader, a standalone XER file viewer. Install it on Windows or Mac, then go to File - Open and select your .xer file. It opens in seconds with no database connection and no Primavera P6 license needed. You get a full 15-day free trial with all PRO features included.
Is There a Free Version?
ScheduleReader offers a free 15-day trial with all PRO features included, and no credit card required. After the trial, annual subscriptions start at $344 per year for Standard and $440 per year for PRO. Enterprise and team licensing is available for organizations that need multi-user deployment.
Does ScheduleReader Open Both .xer and .xml Files?
Yes. ScheduleReader opens both .xer and .xml files exported from Oracle Primavera P6. Both formats are fully supported with identical viewing, filtering and reporting capabilities. Use File - Open and select either format.
Is It Read-Only?
Yes. ScheduleReader provides strictly read-only access to your schedule data. The original XER or XML file is never modified, which makes it safe to share with stakeholders, auditors and field teams without risk of accidental changes.
What Is the Difference Between Standard and PRO?
Standard ($344/yr) includes interactive Gantt charts, views, filters, baselines, critical path analysis, trace logic and progress updates. PRO ($440/yr) adds Reports and Dashboards (including DCMA 14 analysis), Compare Projects, Linear Scheduling View, Calendar View and the Risk module. The free trial includes all PRO features so you can evaluate everything.
Get started
Open a .xer File Without an Oracle License
No obligation. Read-only, and nothing is written back to Primavera P6.