Is it possible to convert Archicad 26 gsm files to Archicad 25 gsm files?

[LeeJaeYoung]

I think I accidentally opened and saved a file in 26 a long time ago.
This time, when I tried to open this file on 25, it didn't even appear.
So I would like to know how to run this gsm file with 25.

[Jochen Suehlo · Accepted solution]

You can use the LP_XMLConverter tool to do this.
https://gdl.graphisoft.com/tips-and-tricks/how-to-use-the-lp_xmlconverter-tool.
I think, it is also possible, if you put the gsm into your embedded library of an AC 26 pln file,

then save the file as AC 25 project, while checking the checkbox of "convert library parts as well" (or similar).

[LeeJaeYoung]

Thank you so much ^^