Question: RAR files are used to compress different files in a single file in archive format
Please fix the punctuation.
Fixed: [RAR files are used to compress different files in a single file in archive format.]

Question: Everything became like a game he was abuzz with ideas and he moved his pieces around until they fell into place to make his statement These are the facts of the matter what do you want to do about it
Please fix the punctuation.
Fixed: [Everything became like a game, he was abuzz with ideas, and he moved his pieces around until they fell into place to make his statement: These are the facts of the matter, what do you want to do about it?]

Question: Common EU classification creates a basis for common risk management including bans on the sale of substances and products which are carcinogenic mutagenic or hazardous to embryos
Please fix the punctuation.
Fixed: [Common EU classification creates a basis for common risk management, including bans on the sale of substances and products which are carcinogenic, mutagenic, or hazardous to embryos.]

Question: You will need to give a thorough history of your dogs health the onset and nature of the symptoms
Please fix the punctuation.
Fixed:
[You will need to give a thorough history of your dog's health, the onset and nature of the symptoms.]