This folder requires the next files to be present:
Extracted from https://www.unicode.org/Public/zipped/9.0.0/UCD.zip:
* UnicodeData.txt
* HangulSyllableType.txt
* PropList.txt
#??? Extracted from http://www.unicode.org/Public/UCA/6.2.0/CollationAuxiliary.zip:
Extracted from https://www.unicode.org/Public/cldr/30/core.zip
* allkeys.txt : this file is actually the allkeys_CLDR.txt file renamed. It is the CLDR's root collation.
* UCA_Rules_SHORT.txt
* all the language specific xml files (de.xml, es.xml, ...) (see the "common\collation" folder):