A few comments:
  • If you are comfortable with FSO then just keep using it, KiXtart supports most of the methods / properties as long as you don't need to support pass by reference, events or data types which are not KiXtart native.
  • OPEN with write (mode=4) will open the file in append mode.
  • There is no OPEN with truncate option. The closest you can get is to check if the file exists and delete it before opening, but of course that will lose any attributes associated with the original file.
  • KiXtart file semantics are designed for simple small text files. The entire file is read into memory when it is opened and written out when it is closed.