What is an XLB file?
An .XLB file is primarily a Microsoft Excel Toolbar Settings File. Microsoft Excel creates this file to store custom settings for toolbars and command bars. When a user modifies the interface in older versions of Excel, the software saves these changes in an .XLB file.
Another possible format for an .XLB file is an OpenOffice.org Module Information File. Oracle and the Apache Foundation use this format to store module data for OpenOffice software. Because .XLB files can have multiple possible meanings, we recommend using viewer.online/xlb to identify the actual format of your file.
How to open XLB files?
Normally, users do not open .XLB files manually. Microsoft Excel loads the Microsoft Excel Toolbar Settings File automatically when the application starts. If you want to inspect the file, you can use viewer.online/xlb. Our tool can analyze .XLB files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Best practices and troubleshooting
Sometimes, an .XLB file becomes corrupt. A corrupt .XLB file can cause Microsoft Excel to crash or hide toolbars. To fix this, you can safely delete or rename the .XLB file. Excel will generate a new, default .XLB file the next time it opens. Always back up the file before you delete it.
Software and tools
The main software for this file is Microsoft Excel by Microsoft. For OpenOffice variants, Apache OpenOffice is the main software. Advanced users can use hex editors like HxD to look at the raw binary data inside an .XLB file.
Summary
viewer.online/xlb is useful for identifying, inspecting, and understanding .XLB files without installing software or dealing with compatibility problems.