.WKS file extension
This is the basic program to work with .WKS extension
.WKS extension is also supported by the following programs:
FX AccuCharts is a powerful charting platform easy to use.
Microsoft Works 4.0 Sheet or Chart
Microsoft Works 9 is a suite of home tools to facilitate your everyday tasks.
Spreadsheet Professional is an Excel Addin that works with all versions of Excel.
word processor, spreadsheet, database, drawing.