Spell check is not working.

How do I go to Program Files/LibreOffice 3.5/Share/Extensions (posted in answer to this question)? I don’t understand how to do this or what it means.

(1) Your operating system? — (2) Your LibreOffice version? — (3) What dictionaries / text languages? — (4) What do you want to modify in the mentioned folder? — (5) Maybe better: describe the spell check / dictionary problem …

Follow hints on https://wiki.documentfoundation.org/User_Profile