The extension WB1 denotes the proprietary format of the spreadsheet Quattro Pro for spreadsheets. Versions 1 to 5 used this extension.
In addition to the table cell values, a WB1 file also contains formatting instructions, formulas, and possibly macros. These macros may also contain malicious code, so it is advisable, especially for WB1 files from unknown sources, to subject them to virus scanning before executing the macros.
Quattro Pro was developed by Borland and is now being developed and distributed by Corel. It is only available as part of the WordPerfect suite.
Older versions of Microsoft Excel (pre-2007) can import WB1 files. This is subject to limitations and requires the installation of a converter that comes with Office.
To convert the Trial version of WordPerfect can be used.
Most often resolving problems with opening WB1 files is very simple. Just install an appropriate program that supports such files. All of the listed programs support WB1 files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of WB1 files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate WB1 files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the XnView applications is not on the list, select "Browse" option in order to manually locate the directory where XnView has been installed.
Sometimes problems with opening WB1 files may not lie with the application itself, but can arise due to other causes, such as: