Ver 7 now appears like a ver 9 file and not possible to import in Rhino 7

I have exported a file from Rhino 7 and now when I want to import to another model it in Rhino 7 it says it can not import Rhino version 9?

I have tried this in cmd but it is not workin.
convert3DM “New Corner seats angled for opening big hatch 251229.3dm” "New Corner seats angled for opening big hatch 251229.3DM V7.3DM --version=70

I get this message
OpenNURBS Archive File: New Corner seats angled for opening big hatch 251229.3dm
1 errors: reading input file

Now I solved it.
I opened it in Irhino in Ipad saved as V8 and then convert in cmd now everything ok

Please share the file, or contact tech support if you can’t share the file publicly. See Rhino - Rhino Support for mail, telephone details.
If this is repeatable, please include the exact steps how you got this file.

New Corner seats angled for opening big hatch 251229.3dm (440.3 KB)
Her are the file made in Rhino 7 exported and appear as Rhino 9 version when you try to import in Rhino 7

Hi @Torvald_Jansson,

I can see the file you posted was saved from iRhino (iOS), not Rhino 7.

Here is a Rhino 7 version.

New Corner seats angled for opening big hatch V7.zip (24.2 KB)

– Dale