How can I watch demos I downloaded from 'Demos'?

Sat, 02/14/2009 - 22:34 — admin
Copy the .hwd_12 file to: ~/.hedgewars/Demos/ in *nix,
or %USERPROFILE%\.hedgewars\Demos\ in Windows
Fri, 05/06/2011 - 22:17 — artii94

it doesnt work, please help me,idk what i'm doing wrong

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