QUESTION: Fix punctuation: To begin your free file analysis simply draganddrop your RCI file inside the dotted lines below or click Browse My Computer and select your file
ANS: To begin your free file analysis, simply drag-and-drop your RCI file inside the dotted lines below, or click "Browse My Computer" and select your file.
QUES: Sardenya Sagrada Familia can be reserved only if the booking start date is between 31 Dec 2015 15 Jan 2016

correct the punctuation.

CORRECTED: Sardenya Sagrada Familia can be reserved only if the booking start date is between 31 Dec 2015 - 15 Jan 2016
Question: Arrangement of study with bookcases from floor to top integrated with panels in the ceiling
--
Answer: Arrangement of study with bookcases from floor to top, integrated with panels in the ceiling.
Access and share with teammates whenever you need it from your computer phone or tablet

Can you repeat this sentence, but add in punctuation?
Access and share with teammates whenever you need it, from your computer, phone, or tablet.
input: So every time you go online and youre navigating the website theres a trail of breadcrumbs that every customer leaves behind regarding what have they browsed what have they put in their cart and not bought how much time have they spent looking at a particular item
fixed: So every time you go online and you're navigating the website there's a trail of breadcrumbs that every customer leaves behind regarding what have they browsed, what have they put in their cart and not bought, how much time have they spent looking at a particular item.
On Saturday it will be partly cloudy partly sunny for a while In the afternoon clouds with light rain will prevail Morning temperatures will be around 14 C During the day they will reach a maximum of 18 C Low temperatures at night will be around 10C Southerly winds are weak

Can you repeat this sentence, but add in punctuation?
On Saturday it will be partly cloudy, partly sunny for a while. In the afternoon clouds with light rain will prevail. Morning temperatures will be around 14 C. During the day they will reach a maximum of 18 C. Low temperatures at night will be around 10C. Southerly winds are weak.