QUESTION: Fix punctuation: Property type Apartment 20 guest apt unitsBuilt 1990 renovated 2000
ANS: Property type: Apartment 20 guest apt unitsBuilt: 1990 , renovated: 2000
QUES: Did someone email you a ION file and youre not sure how to open it Maybe you have found a ION 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 ION file related error message

correct the punctuation.

CORRECTED: Did someone email you a ION file and you're not sure how to open it? Maybe you have found a ION 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 ION file related error message.
Question: In addition to this they are number of reasons accountable for the loss of files from external FireWire hard drives
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Answer: In addition to this, they are number of reasons accountable for the loss of files from external FireWire hard drives.
Guy Marchant had published the text as early as 1486 but this edition only had the woodcut for queen and duchess while the authority picture to the left clearly was the same person who had introduced the mens dance earlier on in the same volume picture to the right

Can you repeat this sentence, but add in punctuation?
Guy Marchant had published the text as early as 1486, but this edition only had the woodcut for queen and duchess, while the authority (picture to the left) clearly was the same person, who had introduced the men's dance earlier on in the same volume (picture to the right).
input: If you know the name of wrong DLL like wiaautdll choose Free downloadsaving money
fixed: If you know the name of wrong DLL like wiaaut.dll, choose Free download--saving money.
The course content has been closely following the ISAF Model Course App G of the ISAF Special Regulations developed

Can you repeat this sentence, but add in punctuation?
The course content has been closely following the ISAF Model Course, App. G of the ISAF Special Regulations developed.