Windows 7: NlsData and NlsLexicons - what are these files for?

Hi all,

sorry, I don't know where to place this question.

Windows 7-System32-folder.
There are many dll-files NlsData and NlsLexicons.
They have a number and evidently are NaturalLanguage-Files.

How to find out which number corresponds to what language if so.
May unneeded files be deleted and keep only those say for US-EN and my own language?

No, you cannot delete them. Just leave them be.
Even if you could delete them you wouldn't gain anything from doing so.

Thank you for that fast reply

I'm just nosy what all them files are for.
MS has that tendency to clutter systems with all kind of stuff one may not need.
For example, System32 has folders like fi-FI, ja-JP, Ko-KR etc.
Languages I will never use.

So, I apologize, but if there was a safe way, I would kick some stuff.