There is only one file type that uses the .WB2 extension:
Corel Quattro Pro File
File created by Quattro Pro, a spreadsheet program that is part of the Corel WordPerfect Office suite; contains spreadsheet data, charts, calculations, scripts; used commonly for personal finance or office-related tasks.
WB2 files may be converted to Microsoft Excel spreadsheets in many versions of Excel. However, charts, drawings, and OLE objects likely will not convert properly.
The WB2 file extension is used by Quattro Pro Windows 6.0.
Updated: November 25, 2009