QUESTION: Fix punctuation: Did someone email you a 025 file and youre not sure how to open it Maybe you have found a 025 file on your computer and wondering what its for Windows might tell you that you cant open it or in the worst case you might encounter a 025 file related error message
ANS: Did someone email you a 025 file and you're not sure how to open it? Maybe you have found a 025 file on your computer and wondering what it's for? Windows might tell you that you can't open it, or in the worst case, you might encounter a 025 file related error message.

QUESTION: Fix punctuation: A realtime clock and memory for 15000 time and date stamped measurements mean everything you are going to need is in this package
ANS: A real-time clock and memory for 15,000 time and date stamped measurements mean everything you are going to need is in this package.

QUESTION: Fix punctuation: All northern peoples believe that there is a close relationship between humans and nature
ANS: All northern peoples believe that there is a close relationship between humans and nature.

QUESTION: Fix punctuation: This made me realise the obvious truth that every researcher had to be independent
ANS:
This made me realise the obvious truth that every researcher had to be independent.