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XLSX to XLSB converter

Convert XLSX to XLSB online from any device with a free converter.

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size up to 20 MB

About Spreadsheet converter

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

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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.

XLSB

Microsoft Excel Binary Spreadsheet File

XLSB is a binary file format used by Microsoft Excel to store spreadsheet data, offering a more compact and efficient alternative to XML-based formats like XLSX. It is primarily supported by Microsoft Excel and a few third-party tools, such as LibreOffice and Apache POI, though compatibility may vary. The format stores data in a compressed binary structure, enabling faster loading and saving times, and supports advanced Excel features like macros, charts, and complex formulas while maintaining smaller file sizes compared to XML-based formats.

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APIs available

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How it works

How to convert XLSX to XLSB

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 XLSB 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 XLSB file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

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

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