>> OBU file

OBU file format description

Many people share .obu files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .obu file can be edited, converted or printed with. On this page, we try to provide assistance for handling .obu files.

1 filename extension(s) found in our database.

.obu - WindLDR Device Data List

The OBU data files are related to WindLDR. OBU file is a WindLDR Device Data List. WindLDR is a Windows application software for IDEC PLCs.

Data files
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WindLDR Device Data List related extensions:
WindLDR Bookmarks File
WindLDR Binary PLC Data
WindLDR Custom Monitor Data
WindLDR Ladder Diagram
WindLDR Print Settings
WindLDR 6 Project Settings

Naturally, other applications may also use the .obu file extension. Even harmful programs can create .obu files. Be especially cautious with .obu files coming from an unknown source!

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 can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

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?

Similar file extensions in our database:

PowerBASIC DOS Compiled Unit
IBM LinkWay Object
Cadence OrCAD Capture Design
Hitachi Ladder Editor Object Program
Pegasus Mail BU File
Compiled Object File

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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