A daily updated filename extension database!

OTLB file extension

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

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

✅ Microsoft OLE Type Library

OTLB file is a Microsoft OLE Type Library. Object Linking and Embedding (OLE) is a proprietary technology developed by Microsoft that allows embedding and linking to documents and other objects.
OTLB format description not yet available
Category: Data files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
OTLB aliases:
OTLB related links:
OTLB related extensions:

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

🚫 The .otlb file extension is often given incorrectly!

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

olb, otb, otl, otln, tlb

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Synergy/DE Object Library
Visual Basic OLE Type Library
Oracle Forms Object Library Module Binary
HP OpenVMS Text Library
Cadence OrCAD Binary Library Database
OTA Bitmap
NoteTab Outline
Opal Outline Document

🔴 Can't open a .otlb 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 .otlb 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 .otlb file extension, write to us!

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