Open MPP files in your browser
The plan Microsoft Project saves, mailed to everyone on a project who doesn't have Project. Open one right here as its Gantt chart, on any computer or phone. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your plan opens as its Gantt chart: the tasks down the left with their dates, and their bars along a timeline with the links between them, milestones, baselines and the critical path in coral.
- Tasks • Fold summaries and zoom from days to years
- Resources and Calendars • A tab each
- Search • Every match counted
- Export • Save as PDF, PNG, CSV, Excel or Project XML
About MPP
Microsoft Project plans work: each task, how long it takes, which tasks wait for which and who does them, worked out into dates. Project runs only on Windows and is sold apart from Office, yet its .mpp files go to clients, subcontractors and everyone else on a project.
An MPP is a Compound File, like an old Word document, holding the tasks, their links and lags, the resources and what each is assigned, the calendars, the baselines a plan is tracked against and the status date. Its layout has no published spec, and it changed with Project 98, 2000, 2007 and 2010, which every later version still saves. An .mpt is a template of one.
Filepeek reads it in your browser with its own port of MPXJ's MPP reader. The tasks open with their outline, durations, dates, % complete, predecessors and resources, and their bars run along a timeline beside them: summaries, milestones as diamonds, links with their lags and the critical path in coral, with baselines under the bars and the status date as a dashed line. Resources and Calendars have tabs of their own, and Export saves CSV, Excel, Project XML, or the chart as PDF or PNG.
Microsoft Project plan
.mpp • .mpt
Format
- MIME type
- application/vnd.ms-project
- Made by
- Microsoft Project
Inside the file
- Holds
- Tasks, links, resources and calendars
- Tracks
- Baselines, actuals and % complete
- Versions
- Project 2000 to 2024
- Format
- A Compound File with no published spec
Opens in every browser
Filepeek opens MPP files from Project 2000 to 2024 in Chrome, Edge, Firefox and Safari, templates (.mpt) too. On their own, browsers only download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open MPP
- WindowsMicrosoft Project, paid • ProjectLibre and GanttProject open it, free
- MacNo Project for Mac • ProjectLibre and GanttProject open it, free
- iPhone and iPadNo app built in opens it
- AndroidNo app built in opens it
Questions
How do I open an MPP file without Microsoft Project?
Drop it on this page or press Peek an MPP. It opens as its Gantt chart in your browser, on Windows, a Mac, an iPhone or Android, with nothing to install.
Which versions of Project open?
Every one from Project 2000 on, up to Project 2024 and the Project in Microsoft 365. Files from Project 98 and older don't open, and a file saved with a password says so.
How do I convert MPP to Excel or PDF?
Open it, choose Export, then Save the tasks and resources as Excel, Save the tasks as CSV, or Save the chart as PDF or PNG. The PDF fits the timeline to A3 or tabloid pages with the tasks beside it.
What do the colors mean?
Blue bars are tasks, filled as far as they're done, and coral ones are on the critical path, where any slip moves the finish. The grey bar under a task is its baseline, a bracket spans a summary, a diamond is a milestone and the dashed amber line is the status date.
Can I edit it?
Filepeek only shows it. Save it as Project XML to work on it in ProjectLibre or GanttProject, which are free, or in Project itself.