Online XLSX to XLS converter | Free GroupDocs Apps

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Convert XLSX to XLS

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Convert XLSX to XLS files online with our free spreadsheet converter. Whether you're on Windows 10, Mac, Android or iPhone, converting XLSX files is quick and easy.

Spreadsheet file formats like XLSX, XLS, ODS, and CSV are commonly used for organizing and analyzing data. XLSX and XLS are associated with Microsoft Excel and support advanced features, CSV is a simpler format, storing data as plain text. Popular applications for working with tables include Microsoft Excel, Google Sheets, and Apple Numbers.

To change XLSX to XLS just drop your file onto the upload form, pick the output format and hit the Convert button. After the conversion is finished, download your XLS file instantly. No email needed.

Check our video

XLSX

Microsoft Excel Open XML Spreadsheet

XLSX is a widely used file format for spreadsheets, developed by Microsoft as part of the Office Open XML standard, succeeding the older XLS format. It is supported by Microsoft Excel, Google Sheets, LibreOffice Calc, and other spreadsheet applications, ensuring cross-platform compatibility. The format is based on XML and stored in a compressed ZIP container, enabling features like advanced formulas, charts, conditional formatting, and support for large datasets while maintaining smaller file sizes compared to its predecessor.

XLS

Microsoft Excel Binary File Format

The XLS file format is a binary file format used by Microsoft Excel to store spreadsheet data, including text, numbers, formulas, and formatting. It is supported by various spreadsheet applications like Microsoft Excel, LibreOffice Calc, and Apache OpenOffice, as well as online tools like Google Sheets. The format organizes data into worksheets with rows and columns, supports advanced features like macros, charts, and conditional formatting, and is part of the broader Excel ecosystem, though it has been largely replaced by the XML-based XLSX format.

How it works

How to convert XLSX to XLS

Step 1

Click inside the file drop area to upload XLSX file or drag & drop XLSX file.

Step 2

Click on Convert button. Your XLSX files will be uploaded and converted to XLS result format.

Step 3

Download link of result files will be available instantly after conversion.

Step 4

You can also send a link to the XLS file to your email address.

FAQ

Questions & Answers

Do you offer a XLSX conversion API for developers?

Absolutely! With the GroupDocs.Conversion API, you can integrate document conversion capabilities into your .NET, Java, Python, or Node.js applications.
Do I need a specific browser to convert XLSX?

No, our converter works with all modern browsers, including Chrome, Firefox, Opera, and Safari. Just open the website and start converting.
When are my uploaded files removed from your servers?

Files remain on our servers for 24 hours before being permanently deleted to ensure your privacy and security.
What options do I have for getting my converted XLSX?

After conversion, a download link will be provided. You can download the file right away or send the link to your email for later access.
What is the typical time required to convert a XLSX?

Conversion time depends on the XLSX file size, but in most cases, you’ll receive the converted file in just a few seconds.

Other Supported Conversions

You can also convert XLSX into many other file formats. Please see the complete list below.

XLSX TO CSV
Comma Separated Values File
XLSX TO PDF
Portable Document
XLSX TO XML
Extended Markup Language
XLSX TO JSON
JavaScript Object Notation File
XLSX TO TXT
Plain Text File Format
XLSX TO XLSB
Microsoft Excel Binary Spreadsheet File
XLSX TO TSV
Tab Separated Values File
XLSX TO XLSM
Microsoft Excel Macro-Enabled Spreadsheet
XLSX TO DOC
Microsoft Word Document
XLSX TO XLSX
Microsoft Excel Open XML Spreadsheet

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