If you were looking for a literal PDF or document guide of this size, it might be a local file or a less common manual. Are you trying to or find a specific manual for one of these? iOS 16.3.1 Review! (Features, Changes, Etc.)
: For hardware developers using the Intel Quartus Prime design software (v18.1), the device support package for the Cyclone 10 LP family is exactly 266.1 MB . (266.1 MB)
: On the Apple App Store, the puzzle game Hole Match Master - Gather game by Shinrays Games is listed with a download size of 266.1 MB . If you were looking for a literal PDF