ICU Data Files

The optional icu data, which consists of two files.

The `icu-iter.dat` file which contains data used for trueWord and sentence chunk types:

- icu-iter.dat

and the `icu-coll.dat` file which contains data used for sort international type.

- icu-coll.dat

These files are only downloaded when an explicit filename is set in the Module object (see Customizing the Module object), the Module object's locateFile function returns their location or if the running browser does not support the Intl.Segmentor or Intl.Collator JavaScript functionality.