Convert CSV to XLS (Excel)

The Comma-Separated Values (CSV) file extension, which is pivotal in data management, is used to store tabular data such as spreadsheets or databases. Each line in a CSV file corresponds to a data record, with fields separated by commas. Originating in the early days of personal computing, CSV files were designed for data interchange, enabling ease of data transfer between different software applications. CSV remains a universally supported and straightforward format for data storage and import/export operations due to its simplicity and efficiency.

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.