How can i recover files from an external disk?

extarnal disk mean? if you delete it and do any work after delete I think you can not recover it.

It is really impossible.
Because it gives errors & asks 4 format again & again.

Yes
The data can,t be saved now by any means but you can save your disk by formatting it properly.

try to download recuva software..just try it out it might help ;)

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