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<div style="margin-top:0;margin-bottom:0;">Dear Mary,<br>
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<div style="margin-top:0;margin-bottom:0;">I tried these command and they worked. An X11 window poped up. Does that mean that ncl works correctly?</div>
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<div style="margin-top:0;margin-bottom:0;">How can I use NCL? I want to try it on my files. Is it sufficient that I simply type ncl and the file name?</div>
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<div style="margin-top:0;margin-bottom:0;">For which format NCL works? Is it necessary to be a .ncl file?</div>
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<div style="margin-top:0;margin-bottom:0;">Thank you in advance.</div>
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<div style="margin-top:0;margin-bottom:0;">Best regards.</div>
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