Some extra binary file functions
  Overview        About these routines
  XPferror()      Return error code of one of the binary file functions      .
  XPfcreateNew()  Create a New file, handy for temporary files               .
  XPfunique()     Create a unique file, handy for temporary files            .
  XPfdate()       Get and/or Set a file's date                               .
  XPftime()       Get and/or Set file's time                                 .
  XPfattr()       Get and/or Set file's Attributes                           .
  XPfcommit()     commit all buffered data to disk                           .
  XPflock()       Lock binary files                                          .
  XPfunlock()     Unlock binary files                                        .