- call-with-input-file S PROCprocedure
- call-with-output-file S PROCprocedure
- open-binary-input-file Sprocedure
- open-binary-output-file Sprocedure
- open-input-file Sprocedure
- open-output-file Sprocedure
- with-input-from-file S PROCprocedure
- with-output-to-file S PROCprocedure
- delete-file Sprocedure
- file-exists? Sprocedure
File operations.