Haven't tried it myself.
[link|http://downloads-zdnet.com.com/3000-2205-10105130.html?tag=lst-0-5|Haxial TextEdit v 1.0]. Free simple editor for MacOS 8.x, 9.x and OS X. 218 kB.
If not, check around there as there are other free editors.
HTH.
Cheers,
Scott.