Convert _XLS to XLSX

Understanding the XLS and XLSX file formats

The XLS file format is a proprietary binary format used by Microsoft Excel for storing spreadsheet data. It was the default format for Excel files until the release of Excel 2007. The XLSX file format, on the other hand, is an open XML-based format introduced with Excel 2007. It offers better data management, reduced file size, and improved recovery options compared to the older XLS format.

Why convert XLS to XLSX?

Converting XLS files to XLSX is beneficial because XLSX files are more efficient in terms of storage and performance. They are also more compatible with modern software and provide enhanced features such as improved data recovery and security.

How to convert XLS to XLSX

To convert an XLS file to XLSX, you can use Microsoft Excel itself or opt for online converters. Here’s how you can do it using Excel:

• Open the XLS file in Microsoft Excel.
• Go to File → Save As.
• Select XLSX as the file format.
• Click Save to complete the conversion.

Best software for XLS to XLSX conversion

While Microsoft Excel is the most reliable tool for converting XLS to XLSX, there are other software options and online converters available:

• Microsoft Excel: The most straightforward and reliable method.
• Online converters: Websites like Zamzar and Convertio offer free conversion services.
• LibreOffice Calc: An open-source alternative that supports both XLS and XLSX formats.