Add punctuation: After days of rain there has been some dry days which normally mounts the risk of disease
A: After days of rain there has been some dry days, which normally mounts the risk of disease.

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

Add punctuation: In 1989 he was largely responsible for the highly prestigious Tuscan wine Ornellaia work
A:
In 1989, he was largely responsible for the highly prestigious Tuscan wine Ornellaia work.