Calligra Plan (>= 2.7) can import data from other project managers using the Microsoft Project Exchange (MPXJ) Java library found here. Currently release 4.2 is needed. MPXJ supports a number of formats, as of release 2.7 only mpp, mpx and planner are tested with Plan.
What needs to be setup:
- MPXJ requires the Apache POI - the Java API for Microsoft Documents. This is included in the MPXJ download, but can also be found here. So both mpxj.jar and poi.jar must be installed on the system.
- The two jar files must be in a place where java can find it. Alternatively you can define CLASSPATH or PLAN_CLASSPATH in your environment variables to point to it, e.g. with