Can i find my host?

Sorry,i know little english!

Becase of my content In violation of copyright,my host be closed,Could i find my documents and files?

contact support and ask if they will give you access so you can download your files. they might do it, they might not.

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Highly unlikely. For that kind of violation, I’m pretty sure they’re not going to be that generous. Don’t be surprised if they ignore the request.