HTML/XHTML fixer which keeps indent same?

[Chrispy]

Does anyone know of an HTML fixing program or whatever on the net that actually fixes your HTML errors and KEEPS the indent the same?

Because I came across one that fixes everything, but it makes a different indent. I used W3 Validator and HTMLFIXIT but no luck.

I have a template I downloaded with lots of stuff in it and I want to keep the indenting the same. I can't understand half the stuff W3 Validator says unless it's fixed by the site.

Any help guys?

** EDIT **

Don't worry, just went through mental torture to fix my pages manually with the Validator. Some things weren't the same as before, but everything's fine anyway.

Chris