importing a archicad file from 2004

[Anonymous]

I have some old files which were drawn in 2004 on archicad but I have no idea what version. Can anyone help me import them to archicad 15.
The file formats are LA1; pB1; pB2; PL1. I know we don't have the original library and the files will be next to useless but there may be information about the site in them. Any brave souls that can help me?
Jo

[Barry Kelly]

Wplan wrote:
The file formats are LA1; pB1; pB2; PL1.

They don't sound like Archicad files.
Are they the file names or the extensions?
If the file extensions then I don't know what they are sorry.

Barry.