Resolution:
When an application is deployed using “http” or “rv” options, a copy of .dat file will be created in the administrator’s machine at tibco/administrator/domain/&ltdomain name>/data/&ltapplication name>.dat.

When the application is deployed using "local" option, the location of the saved project would vary as follows:

For BW project, it is stored in a multi-file project structure located by default in &ltTRA HOME>/domain/&ltDOMAIN NAME>/datafiles/&ltAPPLICATION NAME>_root.

For BWC 5.4 project, it is also stored in a multi-file project structure located by default in &ltTRA HOME>/domain/&ltDOMAIN NAME>/datafiles/&ltAPPLICATION NAME>_root.

For BWC5.5 project, besides creating the above folder, a copy of .dat file under tibco/tra/domain/&ltdomain name>/data/ will be created as well.