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XLSB File - What is an .xlsb file and how do I open it?
Learn about .XLSB files and view a list of programs that open them.
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What is an XLSB file? An XLSB file is a spreadsheet workbook created by Microsoft Excel, a program used to create and edit spreadsheets. It contains one or more spreadsheets with cells arranged by a grid of rows and columns, and may include charts, graphs, and formatting. XLSB files are saved in a binary format.
More Information XLSB file open in Microsoft Excel 365 XLSB files differ from standard Open XML format ( .XLSX ) spreadsheets since they store the spreadsheet using a binary format (BIFF12). You will most likely see and use the XLSX file more often because it is compressed to save space and is easier to share with other users. XLSB files are not compressed, making them larger than XLSX files. However, XLSB files may perform more efficiently within Excel because they are saved in the larger binary format. To create an XLSB file with Excel, select File → Save As , then select "Excel Binary Workbook (*.xlsb)" from the file type dropdown menu. Depending on the operating system you are using, Excel saves XLSB files in the following locations by default: Windows Vista, 7, & 10: C:\Users\<user name>\AppData\Local\Microsoft\Excel\XLStart Windows XP: C:\Documents and Settings\Application Data\Microsoft\Excel\XLStart macOS: ~/Library/Containers/com.microsoft.Excel/Data/Library/Application Support/Microsoft/Roaming/Excel/
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Popularity3.7 | 108 Votes
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.XLSB File Extension
Microsoft Excel Binary Spreadsheet
| Developer | Microsoft |
| Popularity |
3.7 | 108 Votes |
What is an XLSB file?
An XLSB file is a spreadsheet workbook created by Microsoft Excel, a program used to create and edit spreadsheets. It contains one or more spreadsheets with cells arranged by a grid of rows and columns, and may include charts, graphs, and formatting. XLSB files are saved in a binary format.
More Information
XLSB file open in Microsoft Excel 365
XLSB files differ from standard Open XML format ( .XLSX ) spreadsheets since they store the spreadsheet using a binary format (BIFF12). You will most likely see and use the XLSX file more often because it is compressed to save space and is easier to share with other users. XLSB files are not compressed, making them larger than XLSX files. However, XLSB files may perform more efficiently within Excel because they are saved in the larger binary format.
To create an XLSB file with Excel, select File → Save As , then select "Excel Binary Workbook (*.xlsb)" from the file type dropdown menu. Depending on the operating system you are using, Excel saves XLSB files in the following locations by default:
Windows Vista, 7, & 10: C:\Users\<user name>\AppData\Local\Microsoft\Excel\XLStart
Windows XP: C:\Documents and Settings\Application Data\Microsoft\Excel\XLStart
macOS: ~/Library/Containers/com.microsoft.Excel/Data/Library/Application Support/Microsoft/Roaming/Excel/
How to open an XLSB file
You can open XLSB files with Microsoft Excel in Windows and macOS. You can also open XLSB files with OpenOffice Calc (multiplatform).
However, Excel is the best option for opening XLSB files because it fully supports the formatting of Excel spreadsheets, which may include graphs and the spacing of data fields. To open an XLSB file with Excel, select File → Open → Browse , then choose the XLSB file you would like to open.
How to convert an XLSB file
Microsoft Excel can convert XLSB files to various formats. In the Windows and Mac versions, select File → Save As and choose one of the following formats:
Warning
XLSB files are typically legitimate spreadsheets, but cybercriminals may also use them for distributing and executing malware attacks on victims' computers. For example, QakBot malware may embed macros in XLSB spreadsheets that run when a user opens an XLSB file attached to an email. To protect against malicious Windows attacks, never open an XLSB file from the Internet unless you can verify the source's legitimacy.
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Programs that open XLSB files
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Microsoft Excel 365
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OpenOffice Calc
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Category: Spreadsheet Files
Updated: March 18, 2022