Additional types of files may also be using the O file extension If you are aware of any other file formats using the O file extension please contact us so that we can update our information accordingly

Can you repeat this sentence, but add in punctuation?
Additional types of files may also be using the O file extension. If you are aware of any other file formats using the O file extension, please contact us so that we can update our information accordingly.
A nail diagnosis in which colour shape arch size and structure can indicate some kind of disease can be fairly reliable

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A nail diagnosis, in which colour, shape, arch, size, and structure can indicate some kind of disease, can be fairly reliable:
I will never forget this moment it didnt half make me smile

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I will never forget this moment, it didn't half make me smile :)