ROM Hack Tool to open .arc files?

[TWilliamson]

I recently extracted data from Switch NCA files, and all of the data for the stages are in .arc format. I've browsed around looking for a tool to open and edit these files, but I've had no real luck. I found a tool in the 3DS section called Kuriimu but it doesn't seem to work.
Anyone got any ideas?

 

[mrgone]

arc is usually short for archive
https://en.wikipedia.org/wiki/ARC_(file_format)
but thats from the 90s

next step before starting to analyse the file itself would be to search for unpackers for games from the same company.

 

[E1ite007]

yaz0dec:http://www.amnoid.de/gc/szstools.zip
The .arc file type is kinda the standard for models in 3D Mario games since the Gamecube era.
Kuriimu is a toolkit for fan translations, so it would not be optimal for model viewing.

 

[zestiva]

ns arc data is yaz0 compress

 

[TWilliamson]

yaz0dec:http://www.amnoid.de/gc/szstools.zip
The .arc file type is kinda the standard for models in 3D Mario games since the Gamecube era.
Kuriimu is a toolkit for fan translations, so it would not be optimal for model viewing.

Thank you for your advice, Yaz0dec helped me get one step further. The file type I get out is now .rarc. If I open it with Notepad++ the header is CRAR. I have really looked around to find answers but cannot find a solution. Do you have any idea how to proceed further?

--------------------- MERGED ---------------------------

ns arc data is yaz0 compress

I decompressed it with Yaz0dec, but I now have a file CRAR compressed file

 

[E1ite007]

Thank you for your advice, Yaz0dec helped me get one step further. The file type I get out is now .rarc. If I open it with Notepad++ the header is CRAR. I have really looked around to find answers but cannot find a solution. Do you have any idea how to proceed further?

Mmmm...
What about using Wimms SZS Tools: https://szs.wiimm.de/download.html
Supposedly it should work with .crar files.