QUES: Unsure about which type of MAR file you have Do you want to know exactly what it is who created it and how to open it

correct the punctuation.

CORRECTED: Unsure about which type of MAR file you have? Do you want to know exactly what it is, who created it, and how to open it?

QUES: No weekly or monthly limits download as often as you like

correct the punctuation.

CORRECTED: No weekly or monthly limits, download as often as you like

QUES: Also there are residences available in the towers

correct the punctuation.

CORRECTED:
Also, there are residences available in the towers.