Unable to revert back to SketchUp 2018

Hi there !
I upgraded from the Sketchup PRO 2018 version to 2020, but now I am no longer able to export atl files. I can therefor no longer use Artlantis (is this a sketchup or an artlantis problem ?). I reinstalled Sketchup 2018 but now it’s asking me for a serial number and an authorization code, which I don’t have, and can’t find in my emails. Is there anyone I can contact to retrieve this information ?
I have tried going through the “license manager”, it says it’s sending me my info by email but never does.

I want to be able to run sketchup 2018 and 2020 on the same computer until it becomes possible to export atl from Sketchup 2020.

Please Help !

There is no native .atl export option in SketchUp 2018. Sounds like you need. Sounds like you need to install an extension for that.

FWIW, I went to the Artlantis site to see what you need. On the front page there’s this:

Handling DXF, DWG, OBJ, FBX and 3DS formats, Artlantis is compatible with almost all 3D modelers currently on the market.

That implies to me that you don’t need anything special. SketchUp 2020 can export DXF, DWG, OBJ, FBX, and 3DS files natively.

@colin can probably help you get the license sorted but on it’s own, that’s not going to help.

There’s no need to uninstall one version to install the next. You could have left SU2018 installed since they install as separate applications.

I am aware that i need an extension for atl files, and Artlantis provides those. However they don’t yet have a version compatible with Sketchup 2020, which is why, in the meantime, i was trying to go back to Skectchup 2018 (for which the extension works properly).


I have replied to your support ticket. Reply to my message to give me your 2018 license details, and I will send the license to you.

hi colin, could we talk by email ?
I can’t find the support ticket

ArtLantis can also open SketchUp (SKP) files directly, but you might have to save your model from version 2020 to an older version format.

Colin where do i retrieve a support ticket ?

You should have gotten an e-mail from Colin using the e-mail address you supplied when you filed the ticket.

I didn’t receive an email when i supplied the ticket

I use AutoCad with mine, and as with AutoCad, Sketchup has different versions. Depending on what other software I use, I find out what version of SketchUp or AutoCad it supports and do a “save as”. The file type has a dropdown that gives you all the years. I ALWAYS use a separate directory so I do not overwrite the original file. I still save my AutoCad files as 2010 when I bring them into Sketchup. I haven’t checked for a while on which versions is works with.

I’ve tried that as well. It doesn’t matter what version the file is saved in, the problem is i’m exporting it in sketchup 2020 so it’s not compatible.

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