Opening B4U Files

The B4U file type is primarily associated with docPointer.

B4UFile Extension B4U
File extension: B4U
File type:  Visual ReadMe File

What is a B4U file

B4U files mostly belong to docPointer by docPointer. docPointer visualizes links to documents and Web sites using graphical Map Pages. Users can navigate through these pages just like HTML -pages with docPointer browser, which also acts as an authoring tool. You can show how files are really organised as ReadMe files are no longer just plain text. ReadMe files can also be displayed using Web browser such as Firefox or Explorer. docPointer has features from desktop, drawing programs and Web browsers. Visual ReadMe files can be exported to SVG (Scalable Vector Graphics) and Flash. This extension applies to Version 2.x and above. The .ONE extension was used by version 1.x of the program. When Microsoft took it for OneNote, the extension was changed.

How can I open a B4U file?

You need a suitable software like docPointer to open a B4U file. You need a suitable software like docPointer from docPointer to open a B4U 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 B4U file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a B4U file directly in the browser:. Just drag the file onto this browser window and drop it.

Online B4U Text Viewer

Choose your .b4u file to analyze

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

.B4U File Not Opening? How to Fix It:

Because .B4U files can originate from different programs, they aren't universally openable.

  1. Identify the Source: If received with software documentation, it's likely a docPointer Visual ReadMe File. If from a design workflow, it may be a proprietary graphic.
  2. Check the Header: Inspect the first bytes in a text editor or hex viewer:
    • Readable text/XML suggests a structured document.
    • "PK" indicates a ZIP archive.
    • Binary data implies a compiled graphic format.
  3. Use the Original Software: The original program is usually required; try using docPointer, or ask the sender what software they used.
  4. Use this Webpage: Drag and drop your .B4U file into our viewer to detect its format, extract readable metadata, and preview the contents.

Technical Data for B4U File Extension

File classification:
Graphic
Related files:
bu4, b4u, zip

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: Byki List
EXEFile: %ProgramFiles%\Transparent\Byki 4\Deluxe\Byki4Deluxe.exe


a b4u Visual ReadMe File is a special file format by docPointer and should only be edited and saved with the appropriate software.

How to solve problems with B4U files

  • Associate the B4U file extension with the correct application.
  • Update your software that should actually open visual readme files. Because only the current version supports the latest B4U file format. Search, therefore, e.g. on the docPointer manufacturer website after an available docPointer update.
  • To make sure that your B4U file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .B4U file online - secure, fast, and no downloads needed.
Drop here
View another file
B4U file viewer B4U file description