.WT4 file extension

This is the basic program to work with .WT4 extension

Lotus SmartSuite Release 1-2-3 Worksheet

The program works with the following extensions: sym, lwp, wk1, smm, mas, pre, wk3, wk4, wt4, apr, apt, mpr, pal, mwp, vew, dgm, smc, prz and 123

.WT4 extension is also supported by the following programs:

Lotus SmartSuite 97 1-2-3 Worksheet

Lotus 1-2-3 1-2-3 Worksheet

IBM Lotus offers powerful ways to work with numbers.

Lotus SmartSuite - English 1-2-3 Worksheet