An STC file contains formatting and data that form the basis for creating multiple spreadsheets with the same characteristics.
The template files can be created by the user or come from third-party providers.
Calc is part of the OpenSource Office suite OpenOffice.Org. Version 1.X corresponds to version 6.X of the Sun Microsystems (StarDivision) StarOffice. OpenOffice.Org originated from this after its source code was disclosed. StarOffice continued to be sold commercially and offered extended support.
Most often resolving problems with opening STC files is very simple. Just install an appropriate program that supports such files. All of the listed programs support STC files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of STC 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 STC 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 LibreOffice applications is not on the list, select "Browse" option in order to manually locate the directory where LibreOffice has been installed.
Sometimes problems with opening STC files may not lie with the application itself, but can arise due to other causes, such as: