Convert XLSX to XLS Online - Fast & Free
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About this conversion
Easily convert your XLSX spreadsheet files to the older XLS format with Convert2.co. Our powerful online tool ensures a fast, accurate, and free conversion process. XLSX, the default format for modern Microsoft Excel, uses XML-based storage which is more efficient and supports larger datasets. However, some older software or systems may still require the legacy XLS format. This converter is perfect for ensuring compatibility with older applications, sharing files with users who have older Excel versions, or reducing file size for specific export needs. Simply upload your XLSX file, select XLS as the output, and let our converter handle the rest. Experience seamless document conversion without any software installation.
📋 How to Convert XLSX to XLS
Upload
Select or drag your XLSX file to the converter
Convert
Click the convert button and wait a moment
Download
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XLSX
XLSX (Excel Spreadsheet XML) is the modern, default file format for Microsoft Excel, introduced with Excel 2007. It's an XML-based, zipped archive that offers improved performance, smaller file sizes compared to its predecessor, and increased capacity for data (up to 1,048,576 rows and 16,384 columns). It supports advanced features like richer formatting, conditional formatting, and better data validation. XLSX files are generally more robust and less prone to corruption.
XLS
XLS is the legacy binary file format for Microsoft Excel, used up to Excel 2003. It stores spreadsheet data in a proprietary binary structure. While widely compatible with older versions of Excel and other spreadsheet software, it has significant limitations compared to XLSX. These include a maximum of 65,536 rows and 256 columns per sheet, and fewer advanced formatting and data handling capabilities. XLS files can be larger and more susceptible to corruption.
Why Convert XLSX → XLS?
You might need to convert XLSX to XLS primarily for compatibility. If you're working with older software, legacy systems, or sharing spreadsheets with individuals who use older versions of Microsoft Excel (pre-2007), the XLS format is often necessary. Some specific export requirements or integrations with older applications may also mandate the XLS format. While XLSX offers more features and capacity, converting to XLS ensures your data can be opened and processed without issues in environments that don't support the newer XML-based format.
XLSX vs XLS
The primary difference between XLSX and XLS lies in their underlying structure and capabilities. XLSX is an open, XML-based format (zipped archive) offering greater capacity, better performance, and support for advanced features. XLS is an older, proprietary binary format with significant limitations on rows, columns, and features. While XLSX is superior for modern use, XLS remains crucial for backward compatibility. Choose XLSX for new projects and maximum functionality. Convert to XLS when you need to ensure your spreadsheets can be opened and edited by older Excel versions or systems.
❓ Frequently Asked Questions
How do I convert XLSX to XLS?
To convert XLSX to XLS using Convert2.co, simply visit our XLSX to XLS converter page. Click the 'Upload' button to select your XLSX file from your device. Choose 'XLS' as the desired output format. Finally, click the 'Convert' button. Your XLS file will be ready for download in moments.
Is the XLSX to XLS conversion free?
Yes, our XLSX to XLS conversion tool is completely free to use. There are no hidden fees or subscription requirements. You can convert as many files as you need without any limitations.
What is the quality of XLS output?
Our converter strives to maintain the highest possible fidelity during the XLSX to XLS conversion. While the XLS format has limitations compared to XLSX (e.g., row/column limits, fewer formatting options), we ensure that your data, formulas, and essential formatting are accurately transferred to the XLS file.
Can I convert multiple XLSX files at once?
Currently, our online XLSX to XLS converter is designed for single file conversions. For converting multiple files, you would need to upload and convert each XLSX file individually. We are continuously working to improve our service and may offer batch conversion in the future.