StarOffice Document Template (.stw)
The STW file extension stands for StarOffice Document Template. Developed by Sun Microsystems (later acquired by Oracle Corporation), it was used in the StarOffice suite to create document templates with consistent layouts and formatting. These templates facilitated uniformity across various documents like letters and reports. With the advent of Apache OpenOffice, the ODT (OpenDocument Text) format replaced STW, but STW files remain compatible with older versions of StarOffice and OpenOffice.