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Convert your XLSX files online—no registration needed. No matter your platform—Windows, Linux, or macOS—you can convert your XLSX documents rapidly. Drag and drop your file onto the upload form, pick the output format you need, and hit the convert button. After the conversion is finished, download your FODS file instantly.
Conversion time varies based on the XLSX file's size and complexity, but most files convert within seconds. Our advanced options include converting secured documents and delivering conversion results straight to your inbox.
Easily convert your XLSX documents from any location and any device, even on mobile. This conversion app is always accessible online and free for basic use.
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.
FODS is an open, XML-based file format used for storing spreadsheet data, part of the OpenDocument standard developed by OASIS. It is supported by applications like LibreOffice, Apache OpenOffice, and other office suites, offering a lightweight alternative to the zipped ODS format. The format stores spreadsheet data, formulas, and styles in a single, human-readable XML file, making it suitable for interoperability and advanced customization while maintaining simplicity.
You can also convert XLSX into many other file formats. Please see the complete list below.