Convert XLC to OTS

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 OTS (OpenDocument Spreadsheet Template) file extension, maintained by the Organization for the Advancement of Structured Information Standards (OASIS), is used to create spreadsheet templates with predefined styles and formatting in Apache OpenOffice Calc. Introduced in 2005, OTS files facilitate the creation of consistent and reusable templates for tasks like budget planning and invoicing. These files are XML-based, compressed as ZIP archives, and compatible with various open-source spreadsheet applications.