QUESTION: Fix punctuation: Spacious apartment for 6 people
ANS: Spacious apartment for 6 people.

QUESTION: Fix punctuation: They operate in three key areas of business providing steel solutions for the wind and renewable energy sector for the oil and gas industry and for infrastructural projects
ANS: They operate in three key areas of business providing steel solutions for the wind and renewable energy sector, for the oil and gas industry and for infrastructural projects.

QUESTION: Fix punctuation: This is the book Ive been waiting for I cant thank you enough for writing it I have been extremely satisfied with this purchase and I will recommend it to anyone whether they want to feed raw or not
ANS: This is the book I've been waiting for. I can't thank you enough for writing it! I have been extremely satisfied with this purchase and I will recommend it to anyone, whether they want to feed raw or not!

QUESTION: Fix punctuation: In seconds you will learn exactly what type of FXT file you have the software program associated with your file the publisher who created it its security safety status and a variety of other useful information
ANS:
In seconds, you will learn exactly what type of FXT file you have, the software program associated with your file, the publisher who created it, its security safety status, and a variety of other useful information.