All about CLBU Files

The CLBU file type is primarily associated with Calls Backup & Restore.

CLBU	File extension: CLBU
	File type:	Call log backup

What is a CLBU file

CLBU files mostly belong to Calls Backup & Restore. The *.CLBU file extension is primarily associated with call log backups, notably those created by the Calls Backup & Restore application. These files encapsulate a record of call history, potentially including details such as date, time, duration, and contact information. The specific internal structure of a *.CLBU file is proprietary and can vary based on the application used to create it. While ASUS devices and software are sometimes linked to this file type, it's important to note that *.CLBU is not exclusive to ASUS and can be generated by other call backup and restore utilities. Therefore, encountering a *.CLBU file suggests the presence of saved call logs, but the exact software responsible for its creation might require further investigation.

How can I open a CLBU file?

You need a suitable software like Calls Backup & Restore to open a CLBU file. You need a suitable software like Calls Backup & Restore to open a CLBU file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CLBU file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CLBU file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CLBU Text Viewer

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Online File Viewer

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Can't Open Your .CLBU File? Try These Steps

Because .CLBU files can come from different programs, they aren't universally openable.

Identify the Source: If received from an Android phone backup or device migration, it is likely a Call log backup file.
Check the Header: Open the file in a text editor or hex viewer to inspect the first bytes:
- Readable XML or JSON tags suggest a structured text backup.
- "SQLite format 3" indicates a database file.
- "PK" means it's a zipped archive.
Use the Original Software: You usually need the exact app to restore the data. Try installing "Calls Backup & Restore", or ask the sender if you are uncertain.
Use this Webpage: Drag and drop your file here to detect its format, extract readable metadata, and preview the contents.

Technical Data for CLBU File Extension

File classification:

Data file

Related files:

club, exml, unf, bud

a clbu Call log backup is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with CLBU files

Associate the CLBU file extension with the correct application.
Update your software that should actually open call log backups. Because only the current version supports the latest CLBU file format. Search, therefore, e.g. on the manufacturer website after an available Calls Backup & Restore update.
To make sure that your CLBU file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .CLBU file online - secure, fast, and no downloads needed.