https://github.com/Myster-Tee/NxFileViewer Download that, and drag and drop the nsp into the program, which will tell you info. DLC doesn't show languages, but base, and updates will.
This will show all
https://github.com/julesontheroad/NSC_BUILDER
With these two programs, you'll need to have your keys within the nxfileviewer folder
With the NSC Builder, under the 'ZTOOLS', rename prod.keys to keys.txt.
even_if_TEMPEST_Memories_of_Dusk_Complete_Set_DLC_NSW-KTHNX
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even_if_TEMPEST_Roses_for_My_Love_Complete_Set_DLC_NSW-KTHNX
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