Archicad Projects (.pln, .pla, .bpn)
Archicad can open projects from version 17 and up.
You cannot open project files from earlier versions (pre-17) directly in Archicad 28; you have to convert them first.
To convert, open and save the project in Archicad version 17-27. Then you can open the project in Archicad 28.
See also Archicad file and protection compatibilty.
Solo Projects (.pln)
These are the main native document type of Archicad. A .pln file includes all model data and the views generated for the project, as well as the default settings, attributes and library references.
Archive (.pla)
Archive files are similar to Solo Projects, but these include all the library parts, background images and linked textures used in the Project, not just references to them.
For more information, see Archive Projects.
Opening a Backup Project file (.bpn) allows you to recover the last saved version of a damaged project file, provided that the Make Backup Copy checkbox is active in Options > Work Environment > Data Safety & Integrity.
To open a backup file, do one of the following:
–Browse and double-click its name in the file system
–From the Archicad Open dialog or other system dialogs: use the dialog’s “All file types” filter to include BPN files in the available list
Archicad Project Template (.tpl)
For details, see Template Files.
These files are vectorial drawings saved from Archicad’s 3D Window (using the Vectorial 3D Engine). These drawings contain no model information and can be touched up in the Floor Plan with 2D tools.
Important note: In the 3D Window, this option is only available with the Vectorial 3D Engine - not available in Hardware acceleration mode.
Module File (.mod)
For details, see Create Module (.mod) File.
PlotMaker Layoutbook (.lbk)
PlotMaker Drawing (.pmk)