Skip to content
Klargantt

Open a schedule file

Your client sends you a Microsoft Project or Primavera schedule, and you cannot open it. Drop the file: it is read in this tab. It is recalculated, checked, and rendered as a Gantt chart, a workbook or a PDF.

Drop a schedule file

Microsoft Project XML, Primavera P6 XER, GanttProject .gan, CSV or .xlsx table, .mpp recognised. Or

  • 4 schedule formats read
  • 14 DCMA check points
  • 0 bytes uploaded

What you can do with a schedule file

One page per question, 14 in all. Behind them, the same workshop and the same dropped file: there is nothing to choose before you start.

Open a file

Convert and render

Recalculate

Check and compare

66 schedules opened since launch, and that is everything we record.

Why this tool and not another

Three reasons, and all three can be checked in your browser's Network tab.

  • Nothing leaves the tab

    A schedule carries contractual deadlines, penalties and the names of the people on the job. It is not uploaded: the page is not allowed to open a connection to another site, and the browser is what enforces that.

  • The file's dates and the recalculated dates, side by side

    The workshop does not overwrite what it read. It shows what the file says, what the recalculation gives, and the gap between the two, task by task.

  • The result is a file

    No account, no server, no sharing. You leave with a PDF, an image, a workbook, a CSV, or an XML that Project can open.

How it goes

Three moves, all of them in the browser.

  1. Drop the file

    The format is recognised by its content, never by its extension. An XER renamed to .txt still opens.

  2. Look at the gap

    The stored dates, the recalculated dates, the critical path, the float, and the 14-point check report. Whatever could not be read is said, not hidden.

  3. Take what you need

    A paginated Gantt chart up to A0, an image, a workbook, a CSV, or an XML for Project.

What it does not do

The boundary is sharp, and it will not move: Klargantt opens a schedule file, recalculates it, checks it and renders it. It does not manage the project.

  • No project management. No account, no server, no sharing, no task assigned to anyone, no notification.
  • No resource levelling. An overload is reported, never resolved on your behalf.
  • No .mpp writing. The way back to Project is its XML format, which Project opens natively.
  • No conclusion about delay. Comparing two versions gives you the differences; the analysis stays yours.
  • No promise of equivalence with Project. The file's dates and the recalculated dates are shown side by side, and the gap is explained.

What is read today

The format is recognised by the content of the file, never by its extension.

FormatWhere it comes fromWhat is read from it
Microsoft Project XMLProject, File, Save As, XML formatTasks, links, constraints, deadlines, calendars, resources, assignments, stored baselines. Read and written back.
Primavera P6 XERP6, Export, Primavera PM (XER)Activities, work breakdown structure, relationships, calendars, resources.
GanttProject .ganGanttProject, native saveNested tasks, dependencies, lags, public holidays.
Microsoft Project .mppProject, native saveThe container is recognised and inventoried, and the format generation is named. The task detail is waiting for real files.

Who it is written for

Three trades receive schedules they did not produce, and have to meet them anyway.

  • Construction sites

    The contractor's schedule arrives from the supervisor, and the site manager pulls the three-week look-ahead out of it. The construction page.

  • Engineering and design offices

    A Primavera XER arrives from the client, and nobody can open it. The engineering page.

  • Project supervision

    Two versions of the same schedule, and someone has to say what moved. The supervision page.

Drop a schedule

The file stays on your machine. Nothing is sent, nothing is installed, there is no account to create.