A daily updated filename extension database!

OBU file extension

The table below provides useful information about the .obu file extension. It answers questions such as:

  • What is the .obu file?
  • What program do I need to open a .obu file?
  • How can the .obu file be opened, edited or printed?
  • How can I convert .obu files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ WindLDR Device Data List

OBU file is a WindLDR Device Data List. WindLDR is a Windows application software for IDEC PLCs.
Category: Data files
Application: WindLDR
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
OBU aliases:
OBU related links:
OBU related extensions:
WindLDR 6 Project Settings

WindLDR Ladder Diagram

WindLDR Bookmarks File

WindLDR Print Settings

WindLDR Custom Monitor Data

WindLDR Binary PLC Data

Other types of files may also use the .obu file extension.

🚫 The .obu file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bu, ibu, ob, obh, obi, obj, obk, oby, oub, pbu

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Pegasus Mail BU File
Oubliette Data
Microsoft Outlook RSS Subscription Data
SAP Business One BackUp Data
PowerBASIC DOS Compiled Unit
Wavefront Object File
MariaDB InnoDB Undo Log
Compiled Object File
Oxygen Phone Manager Phone Book Data
ABF Outlook Backup Archive

🔴 Can't open a .obu file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .obu file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .obu file extension, write to us!

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