Apologies if this is the wrong stackexchange to ask in.
I've got several dozen powerpoint files which were generated on a different computer, probably with a different version of PowerPoint (I'm not sure). They were saved in SansSerif, which isn't available under that name. Instead of being substituted for MS Sans Serif, it's being replaced with Wingdings which is annoying to say the least.
Does anyone know how to force it to replace with MS Sans Serif instead? I've tried adding a FontSubstitute for it in the registry. I've tried copying the MS Sans Serif font, using a hex editor to rename it to SansSerif and importing it back in. Neither of these have helped with Powerpoint.
Am I missing something really obvious?