Why HEIC files show blank in Windows, and what to do about it
It is a missing codec, not a broken photo. Three ways to make HEIC display, plus the conversion that keeps 10-bit depth.
R. Okonkwo
New camera bodies, old decoders: the raw support gap
CR3, newer ARW compression and X-Trans demosaicing all need decoders newer than the camera’s release.
The six bytes at the start of a DWG tell you which AutoCAD can open it
AC1032, AC1027, AC1021: the header code names the release. This turns a support ticket into a five-second check.