Convert STC to XLS (Excel)

The STC file extension stands for StarOffice Calc Spreadsheet Template. It is a binary file format used to create and save spreadsheet templates with settings such as page formatting, font size, margins, and charts. Originally supported by StarOffice software, it was later adopted by Apache OpenOffice before being replaced by the OTS format. STC files can be opened using OpenOffice Calc, and Planamesa NeoOffice.

The XLS file extension, short for "Excel Spreadsheet", is a legacy format used by Microsoft Excel for storing spreadsheet data. Introduced with Excel 2.0 in 1987, it was the primary format until the introduction of XLSX in 2007. XLS files contain data organized in rows and columns, supporting formulas, macros, and various formatting options, making them essential for data analysis and financial reporting. Despite being replaced by the more robust and secure XLSX format, XLS files remain widely used in many legacy systems and applications.