.OTT

.OTT file extension

This is the basic program to work with .OTT extension

OpenOffice

OpenOffice OpenDocument Text Template

OpenOffice.org is an office suite designed for word processing, spreadsheets, presentations, graphics and databases. It lets you create mathematical equations with a graphic user interface or by directly typing your formulas into the equation editor. You can also produce everything from simple diagrams to dynamic 3D illustrations... (more)

The program works with the following extensions: sgl, pwi, odp, ods, stc, pwt, odt, std, xlt, otg, sti, sqf, oth, stw, smd, otp, sxc, ots, sxd, sfs, ott, sxi, scc, oxt, sxm, pot, sxw, pps, vor, sda, xlw, dot, sdc, odb, smf, sdd, pdt, odf, sds, psw, odg, sdw, pwd, odm and fods

.OTT extension is also supported by the following programs:

TextMaker Viewer

TextMaker Viewer TextMaker Document

TextMaker Viewer is free utility for, showing, and printing text documents.
StarOffice

StarOffice OpenDocument Textdokumentvorlage

StarOffice supports the OpenOffice.org XML file format.