Secure browser-based tool
Primavera schedule intelligence

Primavera P6 Program Comparison Tool

Compare a previous or baseline XER file with an updated Primavera P6 program. See exactly where progress increased and identify activity, duration, date, logic, lag, constraint and calendar changes in a clear WBS report.

Your XER files are processed locally. Nothing is uploaded or stored.
1

Base Primavera P6 Program

Previous week update or approved baseline

2

Updated Primavera P6 Program

Current week or revised contractor program

Select both XER files to begin.

Program Comparison Report

0Changed activities
0Cost progress increase
0Activities added
0Activities deleted
0Logic changes

Cost-Weighted Performance Increase Breakdown

Explains which activities produced the movement in overall work-done percentage.

Budgeted cost basis
0%Previous work done
0%Updated work done
0 ppIncrease explained
0Total budgeted cost
Activity IDActivity NameBudgeted CostPrevious Work %Updated Work %Earned Cost IncreaseProject Contribution
WBS / Activity IDActivity NameChange TypesChanged FieldsPrevious ValuesUpdated ValuesDifferences
ProgressAddedDeletedDurationDateLogic / LagConstraintCalendar / Details
Durations, float and lag are converted from XER hours using each activity's assigned calendar hours per day. Performance % Complete is calculated as the sum of each activity's Budgeted Cost multiplied by its P6 Activity % Complete, divided by Total Budgeted Cost. Activity contributions reconcile to the total project percentage movement.

Secure Primavera P6 schedule comparison

Online XER Comparison Tool With No Data Upload

This Primavera P6 XER comparison tool helps planners, project controls engineers and claims teams compare a baseline or previous update against a revised programme directly in the browser. Your XER files are read locally on your device, so confidential project schedules are not uploaded to Planix Engineering or stored on a server.

How To Use The XER Comparison Tool

  1. Export the baseline, previous update or approved programme from Primavera P6 as an XER file.
  2. Export the current or revised programme as a second XER file.
  3. Load both files into the browser and click the comparison button.
  4. Review progress, activity, duration, date, logic, lag, constraint and calendar changes by WBS.
  5. Export the report for schedule review, progress meetings or delay analysis records.

What The Tool Compares

The report is designed for practical P6 update reviews. It highlights changes that can affect progress reporting, critical path interpretation and extension of time discussions.

  • New and deleted activities
  • Start, finish and duration movement
  • Progress and performance percentage changes
  • Predecessor, successor, relationship and lag changes
  • Constraints, calendars and WBS grouping changes

Technical Definitions

XER File
A Primavera P6 export file containing schedule activities, relationships, dates, calendars, WBS data and project settings.
Programme Comparison
A structured review of two P6 schedule versions to identify what changed between submissions or update periods.
Logic Change
A change to relationships, predecessors, successors or lags that may alter the sequence and critical path of the programme.
Local Browser Processing
The XER file is processed by JavaScript inside your browser session instead of being transferred to a remote server.

XER Comparison FAQ

Are my Primavera P6 XER files uploaded?

No. The comparison runs locally in your browser. Your XER files are not uploaded to Planix Engineering and are not stored on a server.

Is this tool suitable for confidential project schedules?

Yes. Because the tool uses local browser processing, it is suitable for sensitive project controls workflows where corporate schedule data should not leave the user's device.

Which files are compatible?

The tool is built for Primavera P6 XER exports. For best results, compare two XER files from the same project, such as a baseline and a current update.

Does this replace Primavera P6?

No. It is a companion review tool for planners and project controls teams. Primavera P6 remains the source system for schedule creation and official updates.