.WB3 File

File extension wb3 is associated with Quattro Pro, a spreadsheet program developed by Borland and later sold by Corel, most often as part of Corel's WordPerfect Office.

The wb3 files contain spreadsheet created in Corel Quattro Pro version 7 or 8.

MIME types used for Quattro Pro wb3 files:
application/x-qpro
application/wb3
application/x-quattropro
application/x-QuattroPro-viewer
application/x-quattro-win
application/x-wb3

Files with wb3 extension are old spreadsheets from Corel Quattro Pro spreadsheet editing software.

How to open:

Use Quattro Pro to work with the *.wb3 files.

How to convert:

Some spreadsheet editors still support the old WB1 or WB3 file format and can import data from them. These can then be saved to something more common nowadays, like the XLS. Microsoft Excel 2003 with Microsoft converter and compatibility pack is able to export *.wb3 files to XLS and XLSX files.