Exotic files in windows/fonts/

Hello everyone.
What is the purpose of the following file types in the Windows fonts sub-folder?
Can they be deleted without damage?

  • .xml a single, fms_metadata.xml
  • .dat, a single StaticCache.dat
  • .compositeFont for example GlobalMonospace.compositeFont
  • .fon example 85f874.fon
  • .fot example Courier Prime Bold Italic.fot

Thank you for your explanations.