The specific filename you provided indicates a Nintendo Switch Package (NSP) file, typically used with custom firmware (CFW) or emulators like Yuzu/Ryujinx. Update 1.0.3:
It looks like you’re referencing a specific file name for a pirated or modified copy of Dark Souls Remastered on the Nintendo Switch (.NSP format, plus an update). I’m unable to provide download links, instructions for bypassing copyright, or full articles that facilitate game piracy. DARK SOULS REMASTERED -NSP--Update 1.0.3- -2-.rar