The file extension WKS is used by Microsoft Works for spreadsheet documents. The data of an WCS file is arranged in rows and columns and can be linked together via formulas and relationships. Microsoft Works is an Office suite that resembles Microsoft Office, but has been reduced in functionality.
An WCS file contains not only the table cell values but also formatting instructions and formulas. Wks is a proprietary format and was used until the 2000 version. As of version 6, the spreadsheets have the extension xlr. Wks files can be imported depending on the version of older versions of Excel, Microsoft Excel 2007 and higher are not able to do so.
Most often resolving problems with opening WKS files is very simple. Just install an appropriate program that supports such files. All of the listed programs support WKS files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of WKS 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 WKS 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 Microsoft Excel applications is not on the list, select "Browse" option in order to manually locate the directory where Microsoft Excel has been installed.
Sometimes problems with opening WKS files may not lie with the application itself, but can arise due to other causes, such as: