.X

.X file extension

This is the basic program to work with .X extension

Internet Explorer

Internet Explorer WorldView VrmlViewer Object

The last in a line of browsers, Internet Explorer 11 is also the precursor of Microsoft Edge, the new Microsoft Web navigation tool for both Windows Phone and Windows 10. With the stress put on security and a faster browsing experience, IE 11 mixes backward compatibility with the support for the latest Web standards - such as HTML5, WebM, WebGL, etc. - and media codecs... (more)

The program works with the following extensions: gz, gif, jpg, htm, png, swf, xml, jpeg, html, djvu, x, dx, c4, xsl, plg, ssi, gau, dds, tgf, tnt, cal, jpe, tlx, cpc, hsp, x3d, ovx, svg, ttz, pdb, cpi, stm, wrz, scr, aam, acb, jp2, its, clx, mg2, url, ppm, dae, mfp, ctp, mg3, vdx, wrl, ct4, djv, plx, mht, wrb, vsd, vss, xyz, j2k, odc, csm, vst, lbi, jpx, hdt, vsx, art, cub, vtx, scf, sid, vmo, cals, jfif, itss, spop, x3dv, svgz, x3dz, shtm, jfax, csml, opml, hdtl, cube, rels, lasso, xhtml, shtml, bskey, bswrl, x3dvz, cpidl, bxwrl, mhtml, chtml, its51, ihtml, banctp, pcrctp, bizctp, sigctp, broctp, stictp, calctp, tshctp, carctp, xrm-ms, cerctp, webctp, cftctp, cpijob, envctp, faxctp, hcrctp, lblctp, notctp, nwsctp, dtsconfig and xevgenxml

.X extension is also supported by the following programs:

Free Download Manager

Free Download Manager

A powerful modern download accelerator and organizer for Windows and Mac.
MeshX

MeshX DirectX X File

3D modelling program.