.ODF

.ODF file extension

This is the basic program to work with .ODF extension

OpenOffice

OpenOffice OpenDocument Formula

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

.ODF extension is also supported by the following program:

MemoryLifter

MemoryLifter MemoryLifter Learning Module

MemoryLifter is a free virtual flashcard system for windows.