.HTX file extension

This is the basic program to work with .HTX extension

Avant Browser

Avant Browser HTML Document

Avant is a multi-processing browser featured with Private Browsing, Anti-Freezing, Low CPU Usage, No Memory Leak, Web Form Auto-Filler, Online Bookmarks, Mouse Gestures, AD/Popup Blocker, Full Screen/Desktop Mode, Flash Filter, RSS Reader..... (more)

The program works with the following extensions: htm, html, mht, xht, url, stm, htx, htw, plg, its, mfp, spop, svgz, shtm, mhtml, xhtml and shtml

.HTX extension is also supported by the following programs:

Advanced Browser

Advanced Browser HTML Document

Advanced Browser has fast operation, good stability, and tabbed browsing.
Enigma Browser

Enigma Browser HTML Document

Enigma Browser, expanded version of MS IE that blocks adware, spyware, popups.