Please capitalize where necessary: unsure about which type of xfn 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 XFN file you have? Do you want to know exactly what it is, who created it, and how to open it?

Q: we will collect general information (such as the type of browser you use, the files you request, and the domain name and country from which you request information) to improve our web site and better meet your needs.

A: We will collect general information (such as the type of browser you use, the files you request, and the domain name and country from which you request information) to improve our Web site and better meet your needs.

Q: the species has only been found a few times earlier, and always indoors. this is the first time, thas this species has been found "in the nature" in the faroe islands.
A: The species has only been found a few times earlier, and always indoors. This is the first time, thas this species has been found "in the nature" in the Faroe Islands.

Problem: corona discharge and surface voltage gradient hit and damage plants in the whole extent of their exposure approximately evenly, induction according to the distance from discharge channel.
Can you repeat this sentence, but capitalize it?
Answer: Corona discharge and surface voltage gradient hit and damage plants in the whole extent of their exposure approximately evenly, induction according to the distance from discharge channel.

Text: however, the study showed that ginkgo biloba was the only preparation that could be linked to a prophylactic effect on this type of pelvic cancer.

Correct capitalization: However, the study showed that ginkgo biloba was the only preparation that could be linked to a prophylactic effect on this type of pelvic cancer.

Text: these tests will reveal very valuable information for the initial diagnosis.

Correct capitalization:
These tests will reveal very valuable information for the initial diagnosis.