When browsing for Switch titles, you will typically encounter two main file formats. Here is the difference between the and XCI versions of Spyro:
This is typically a signature check error. Ensure your CFW (Atmosphere) is on the latest stable release (at least version 1.2.0 or higher). Also, run the sigpatches appropriate for your firmware version. spyro reignited trilogy nsp xci update 101 full