Hi , I am keen to understand on how I can import or export process m

Mukesh, as you told, all the components on Appian are exported using a Zip file. Those components is a lot of XML files using BPM 2.0 convention and all the tags insidethe files follow that convention.
Appian have a particular way to group this information and create a Zip file.
If the other tool support import using Xml files in BPM 2.0 convention, you can import Appian models in other tool and vice versa is real too.
You can get the Xml file exported to the other tool and import on Appian if this file follow that convention.
I hope this information help you.
Regards

Mukesh, as you told, all the components on Appian are exported using a Zip file. Those components is a lot of XML files using BPM 2.0 convention and all the tags insidethe files follow that convention.
Appian have a particular way to group this information and create a Zip file.
If the other tool support import using Xml files in BPM 2.0 convention, you can import Appian models in other tool and vice versa is real too.
You can get the Xml file exported to the other tool and import on Appian if this file follow that convention.
I hope this information help you.
Regards