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Mac OS X lets you navigate folders with the arrows, but I can't seem to find a way to open the highlighted file. Windows just works with Enter / Return. I can only seem to preview it with the spacebar...

I feel... stupid! :)

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up vote 19 down vote accepted

Cmd + (Down Arrow) work too.

See also

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Use Cmd+O.

You can also use Space or Cmd+Y to preview the file using Quick Look.

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Cmd+O is open. Pressing enter helps renaming the file.

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