The files are supported with scripting already. You only need to know the format of the file. There likely isn't a single standard for the format of those files and if mIRC itself supports one format and then the people maintaining those files stops maintaining them, then it would require mIRC to be updated to support a different file format. Better to have a script do that imo. Especially with the very small number of people interested in spell checks in IRC. There is just too much shorthand in IRC to make spell checking worth doing.
