Excessive watchguard traffic

We have a Watchguard XTM330 device. The logs are showing a fairly constant stream of denied traffic from external IP addresses to our public IP.
Can anyone help with interpreting these and should they be of concern.
I have attached a screen clip of the traffic monitor window. Sorry it is not the clearest.
I have also attached the text entries.
Document.rtf
Document-one.rtf
wsmythAsked:
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gheistCommented:
Can you attach logs in compressed text format?
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wsmythAuthor Commented:
txt version attached
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gheistCommented:
It looks like common distributed portscan. Watchguard (or even human operator) cannot identify this type of access and log a short line for all related packets.
Just check your rules that nohing unnecessary shows up from internet to make sure you are safe.
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