topic Re: Instal older version 12-17 in Installation & update

Instal older version 12-17

Sergiusz Tomiczek — Wed, 17 Sep 2025 21:48:44 GMT

Hello

I need to install an older versionof ArchiCad 17 to 12 US/GB/POL, and I can't find the link on the Graphisoft webside . Does anyone know where I can find it?

Thx

Operating system used: Windows 12-17

Re: Instal older version 12-17

Barry Kelly — Thu, 18 Sep 2025 00:29:18 GMT

Why do you need the older versions?

You don't need them to open an old file.

Barry.

Re: Instal older version 12-17

vistasp — Thu, 18 Sep 2025 05:36:48 GMT

For versions prior to v.18, you have to contact GS.

https://support.graphisoft.com/hc/en-us/articles/21118454283921-Download-a-legacy-version-of-Archicad

Re: Instal older version 12-17

Sergiusz Tomiczek — Mon, 22 Sep 2025 21:14:55 GMT

Because the person who works with me, has version 12 and he can't open it.

Re: Instal older version 12-17

Sergiusz Tomiczek — Mon, 22 Sep 2025 21:25:45 GMT

thx

Re: Instal older version 12-17

Barry Kelly — Tue, 23 Sep 2025 00:12:25 GMT

So you work in 17 and you need to save back to 12 for your colleague?

If so you will need to install 16, 15, 14 & 13 to be able to save back to 12 one version at a time.

The language version (US/GB/POL) should not be important when converting the file, but you will only be able to run the language version that your license supports.

You will need the original CD/DVD installation disc as these are not available on line that I am aware of.

Or contact your local distributor as mentioned, and hopefully they can help.

Barry.

Re: Instal older version 12-17

Gabor Szelei — Tue, 23 Sep 2025 08:42:14 GMT

Hello Barry,

I have an AC10 project that I need to modify. What is the easiest way to open this file?

I'm using AC28 now.

Thx,

Gábor

Re: Instal older version 12-17

Barry Kelly — Tue, 23 Sep 2025 10:24:07 GMT

@Gabor Szelei wrote:

Hello Barry,

I have an AC10 project that I need to modify. What is the easiest way to open this file?

I'm using AC28 now.

From memory you need version 26 or older as that can open version 10 files.
Then save and open in 28.

27 & 28 can only open back to version 18 I think.

Barry.

Re: Instal older version 12-17

Gabor Szelei — Tue, 23 Sep 2025 15:12:14 GMT

so, you say AC26 can open AC10 project... wow!

I didn't think so... I'll try it right away, I have AC26 installed on my computer!

thank you very much for the information

Gábor

Re: Instal older version 12-17

Lee Hankins — Tue, 23 Sep 2025 15:33:27 GMT

Hi,

This link should give you more information on which versions of Archicad can open which legacy versions, it's near the bottom of the page

https://community.graphisoft.com/t5/Licensing/Archicad-File-and-Protection-Key-compatibility/ta-p/304032

File convertors for older versions are available here

https://community.graphisoft.com/t5/Project-data-BIM/Converting-old-Archicad-Files/ta-p/303492

Re: Instal older version 12-17

Barry Kelly — Wed, 24 Sep 2025 02:24:00 GMT

I just found this post.

https://community.graphisoft.com/t5/Project-data-BIM/Converting-old-Archicad-Files/ta-p/303492

Barry.

Re: Instal older version 12-17

Gabor Szelei — Wed, 24 Sep 2025 07:48:30 GMT

Problem solved, AC26 opened the AC10 project!
Thank you very much for your help

Gábor