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Welcome to the File Converter

Upload your file to start converting. Choose a file from your device or use a remote file link.

${shortenFileName(item.file_name)} ${formatBytes(item.file_size)}
Output:
Add ${items.length} files

How to Convert Xlsx to XLS?

  1. Click the “Choose XLSX Files” button and select your XLSX file
  2. Click on the “Convert” button to start the conversion
  3. When the status changes to “Done”, click the "Download XLS" button

Convert Any XLSX to XLS

This tool supports converting many types of Xlsx to XLS. Convert XLS, CSV, PDF, TXT, ODS, HTML, XML, DOCX AND RTF to XLS.

Best Xlsx Converter

Convert your Xlsx with perfect quality, size, and compression. Plus, you can also batch convert Xlsx using this tool.

Free & Secure

Our Xlsx Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.

XLSX is the modern file format used by Microsoft Excel, based on the Office Open XML standard, for storing spreadsheet data. It supports larger datasets, more complex formulas, charts, and styles, widely used in data analysis, financial reports, and business presentations. Compared to the older XLS format, XLSX offers better compatibility and enhanced security, making it suitable for various applications.

How to open and edit an XLSX file?

XLSX files can be opened and edited using various tools. The most popular choices include: - Spreadsheet software: [Microsoft Excel](https://www.microsoft.com/excel) (for Windows and macOS), [LibreOffice Calc](https://www.libreoffice.org/) (cross-platform), [Google Sheets](https://sheets.google.com/) - Online editors: [Zoho Sheets](https://www.zoho.com/sheets/), [Sheetgo](https://sheetgo.com/) Regardless of the tool you choose, the process is straightforward: simply double-click the file or right-click and select 'Open'. If you need to convert an XLSX file to another format, LibreOffice provides powerful conversion features, such as saving as other formats through LibreOffice Calc. Many online tools also support XLSX file conversion and editing.

XLS is the early binary file format used by Microsoft Excel for storing spreadsheet data. It is widely used in data analysis, financial management, and business reporting. Unlike the modern XLSX format, XLS uses binary encoding and supports basic formula calculations and charts. Although XLS has been replaced by XLSX as the default format, many legacy systems and applications still rely on XLS for data exchange.

How to open and edit an XLS file?

XLS files can be opened and edited using various tools. The most popular choices include: - Spreadsheet software: [Microsoft Excel](https://www.microsoft.com/excel) (for Windows and macOS), [LibreOffice Calc](https://www.libreoffice.org/) (cross-platform), [Google Sheets](https://sheets.google.com/) - Online conversion tools: [Zamzar](https://www.zamzar.com/), [Online-Convert](https://www.online-convert.com/) Regardless of the tool you choose, the process is straightforward: simply double-click the file or right-click and select 'Open'. If you need to convert an XLS file to another format, LibreOffice provides powerful conversion features, such as saving as other formats through LibreOffice Calc. Many online tools also support XLS file conversion and editing. Note that some tools may have limited support for macros and complex formulas.

Your Data, Our Priority

At AllConverter, we go beyond just converting files—we protect them. Our robust security framework ensures that your data is always safe, whether you're converting an image, video, or document. With advanced encryption, secure data centers, and vigilant monitoring, we've covered every aspect of your data's safety.

Learn more about our commitment to security

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