Convert sxc to xlk

What is the difference between .sxc and .xlk?

Description: The SXC file format is associated with StarOffice Calc, the spreadsheet component of the StarOffice suite, which was a predecessor to the Apache OpenOffice and LibreOffice suites. SXC files are used to store spreadsheets that include data organized in rows and columns, formulas for calculations, charts, and other graphical elements. This format allows for the management and analysis of numerical data, making it suitable for financial, statistical, and various other types of information.; XLK files are Microsoft Excel Backup Files, which are created as backup copies of Excel files (.XLS or .XLSX). They contain a copy of the excel file in its original state, and can help to restore a file if the original is lost, damaged or corrupted.