Rust - rusts metal. When miscast, makes the target a crab of some sort
Go - Same as "command" spell
Regular Expression - makes any cryptic message understandable in a language you know
Transfer Protocol - allows the teleportation of one packet to a willing host
Read Only - cast on a book, scroll or any other thing with written words. Ensures no further words can be written. No scribbles or any sort of artwork will stick either. The object can still be destroyed
Icon - For a short period, the target of the spell becomes a beloved, or hated, icon of a subject. IE: beloved icon of beauty, hated icon of music.
Master Boot Record - this magical list contains all the master level boots ever created and their current whereabouts
Partition Table - allows any object with at least 2 flat sides to be cut into any shape