Rich Text Box - Preserve the format of the file and disply teh text

Hi,
I am reading txt/out/err/log ect files adn dispalying the content within rich text box control.
rtbFileExplorer.Text = File.ReadAllText(strFile);

The problem is that the file formatting is not preserved. I mean, the tabs newlines etc....

How can I read teh file into RTB by preserving the format and disply in a neat/user readbale form?

Thanks,
Santhi
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