Convert XLSB to XLSX Files Online for Free.
Free online tool to convert xlsb to xlsx files quickly and securely. No installation required – start converting your files in just a few clicks!
Drag and drop your files here or click to upload.
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Maximum file size is 10MB
How It Works
How to Convert XLSB to XLSX
Click inside the file drop area to upload your XLSB file or drag & drop it.
Select XLSX as the output format and click the 'Convert' button.
Download the converted XLSX file instantly after conversion.
You can also send a link to the converted file via email. (Optional)
Convert Your XLSB files to other formats
RunConvert.com can convert your XLSB files to these other formats:
Convert Your XLSB files to other formats
Convert Files to XLSB Format
RunConvert.com supports these converters to XLSB format:
Convert Files to XLSB Format
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Frequently Asked Questions
Here are some common questions and answers about xlsb file conversions ask by our users on RunConvert.com.
Frequently Asked Questions
Q: Can I convert Google Sheets using RunConvert?
A: Yes—just download your Google Sheet as an Excel, CSV, or PDF file first, then upload it to RunConvert.
Q: Can I convert a spreadsheet into an image?
A: RunConvert doesn't do images yet, but you can convert to PDF and then screenshot or use a PDF-to-image tool.
Q: Why do some formats lose cell formatting?
A: Some file types just don’t support that info. CSV, for example, only stores plain text—no colors, no borders, just the facts.
Q: Can I convert a spreadsheet to use in a mobile app?
A: Yes! Many mobile apps work well with CSV, XLSX, or even JSON if you’re importing data programmatically.
Q: How long does a spreadsheet conversion take?
A: Usually just a few seconds. It depends on your file size and internet speed, but it’s faster than brewing a cup of coffee.
Q: What is spreadsheet file conversion?
A: It's basically changing one spreadsheet format into another—like turning an Excel file (.xlsx) into a CSV, PDF, or Google Sheets. Think of it like translating a document into another language, but for software.
Q: Can I edit my spreadsheet after converting it to PDF?
A: Not really. PDFs aren’t built for editing like spreadsheets are. You can annotate or highlight, but serious edits? You’ll need to go back to the spreadsheet.
Q: Will colors and fonts transfer in my spreadsheet conversion?
A: That depends on the format. Excel to Excel? You’re good. But converting to CSV? Say goodbye to colors, fonts, and anything fancy—it’s just plain text there.
Q: Can I batch convert multiple spreadsheets at once?
A: Right now, RunConvert handles one file at a time. But batch conversion is in the pipeline, so stay tuned!
Q: Do colors and highlights stay after conversion?
A: Only if you convert to formats that support formatting—like XLSX or ODS. CSV and TSV don’t keep colors.
What is XLSB (Excel Binary Workbook)?
XLSB (Excel Binary Workbook) is a file format used by Microsoft Excel for storing spreadsheet data in a binary format. Unlike the more common XLSX format, which is XML-based, XLSB stores data in a binary structure, making it faster to open and save for large workbooks.
XLSB files are typically used for large and complex Excel workbooks that require faster processing and lower file sizes.
How to open XLSB?
XLSB files can be opened using Microsoft Excel (Excel 2007 and later). You can simply double-click the file to open it, or use the 'Open' option in Excel's file menu.
XLSB files are not compatible with some other spreadsheet programs like Google Sheets. However, they can be opened in Excel, which is the recommended program.
XLSB is Developed by: Microsoft
XLSB was Released on: 2007
Useful Links for XLSB:
How to convert XLSB?
You can convert XLSB files to other formats, such as XLSX, CSV, or PDF, using Excel or online file converters. Simply open the file in Excel and use the 'Save As' option to choose the desired format.
Many online tools allow you to upload your XLSB file and convert it to different formats, making it easier to share or edit the data in various applications.
What is XLSX (Excel Spreadsheet)?
XLSX (Excel Spreadsheet) is a file format used by Microsoft Excel to store spreadsheets. It is a more modern and efficient version of the older XLS format and is based on XML (Extensible Markup Language).
XLSX files can store multiple sheets, data tables, charts, graphs, and more complex data structures. This format is widely used for organizing, analyzing, and visualizing data.
How to open XLSX?
XLSX files can be opened using spreadsheet programs like Microsoft Excel, Google Sheets, LibreOffice Calc, and Apple Numbers. These applications fully support the features of XLSX files, such as multiple sheets, formulas, and charts.
To open XLSX files in Excel or Google Sheets, simply double-click the file or import it directly into the application.
XLSX is Developed by: Microsoft
XLSX was Released on: 2007
Useful Links for XLSX:
How to convert XLSX?
You can convert XLSX files to other formats, such as CSV, PDF, or JSON, using online file converters. Upload the XLSX file and choose the desired output format.
Many spreadsheet applications like Excel also allow saving XLSX files in other formats, enabling cross-platform compatibility.
What Our Users Say
Don't take our word for it – here's what users think about Runconvert.
Saved me hours of work
I had to convert multiple PDFs to Word for editing. This tool made it so easy and preserved all the formatting perfectly. The batch processing feature is a game changer.
Michael T
Professional quality
As a graphic designer, I need reliable conversion tools. This site delivers professional quality every time. The image conversions maintain resolution and color accuracy.
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Fast and reliable
I've tried many conversion tools but this one is by far the fastest and most reliable. No watermarks, no quality loss, and the interface is so intuitive.
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