Convert XLC to XLS (Excel)

The XLC file extension stands for "Excel Chart" and is associated with Microsoft Excel. This format was historically used to store chart data and formatting information separately from the main Excel workbook. Originating in earlier versions of Excel, the XLC format allowed for specialized chart manipulation and presentation. However, with advancements in Excel, the need for a separate chart file extension has diminished, and XLC files have become largely obsolete. Modern Excel versions integrate chart data directly within the primary workbook file, simplifying data management and accessibility.

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.