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Easily convert your XLSX files online with no registration required. Convert your XLSX documents from Windows, Linux, or macOS. Simply drag and drop your file into the upload form, select the desired output format, and click the convert button. Once the conversion is complete, you can download your RTF file.
Depending on the XLSX file's size and format, conversion may take a few moments, but most files convert quickly. With advanced features, you can convert password-protected documents and have the results sent to your email.
Convert your XLSX documents anytime, anywhere, on any device—including mobile. Use this conversion app online 24/7—free for basic conversions.
Check our videoXLSX 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.
RTF is a document file format developed by Microsoft in 1987, designed for cross-platform document interchange with basic text formatting. It is supported by a wide range of word processors, including Microsoft Word, LibreOffice, and Google Docs, and can be opened on most operating systems. The format uses plain text with control words and symbols to define formatting, such as fonts, styles, and embedded objects, but lacks advanced features like macros or complex layouts found in modern formats.
You can also convert XLSX into many other file formats. Please see the complete list below.