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HomeXLSB vs XLSM
.xlsb
.xlsm

XLSB vs XLSM

Compare Excel Binary Workbook and Excel Macro-Enabled formats — understand the key differences and when to use each

Format Overview

XLSB

Excel Binary Workbook

Excel Binary Workbook (.xlsb) is a spreadsheet file format.

.xlsbspreadsheet

XLSM

Excel Macro-Enabled

Excel Macro-Enabled (.xlsm) is a spreadsheet file format.

.xlsmspreadsheet

XLSB vs XLSM: Feature Comparison

FeatureXLSBXLSM
Full NameExcel Binary WorkbookExcel Macro-Enabled
File Extension.xlsb.xlsm
Categoryspreadsheetspreadsheet
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use XLSB vs XLSM

Use XLSB when you need:

  • •Files in Excel Binary Workbook format for maximum compatibility
  • •Industry-standard spreadsheet format support
  • •Wide software and platform compatibility

Use XLSM when you need:

  • •Files in Excel Macro-Enabled format for specific workflows
  • •Optimized spreadsheet format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

XLSB XLSMXLSM XLSB
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Learn More About These Formats

XLSB Converter XLSM Converter

Frequently Asked Questions

What is the difference between XLSB and XLSM?
XLSB (Excel Binary Workbook) and XLSM (Excel Macro-Enabled) are both spreadsheet file formats. XLSB files use the .xlsb extension while XLSM uses .xlsm. They differ in compression, quality, compatibility, and intended use cases.
Can I convert XLSB to XLSM for free?
Yes! Convert999 lets you convert XLSB to XLSM completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, XLSB or XLSM?
It depends on your use case. XLSB (Excel Binary Workbook) may be better for certain workflows, while XLSM (Excel Macro-Enabled) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

XLSB Converter

Convert from XLSB

XLSM Converter

Convert from XLSM

File Tools

Compress, resize, merge

Convert to XLSB

All sources → XLSB

Convert to XLSM

All sources → XLSM

Format Statistics

Trends & data 2025

More Format Comparisons

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