All about OLB Files

The OLB file type is primarily associated with OrCAD PCB Designer.

OLB	File extension: OLB
	File type:	symbol models library

What is an OLB file

OLB files mostly belong to OrCAD PCB Designer by Cadence. An OLB file is an electronic component symbol library used by Cadence electronics design automation programs such as PSpice and OrCAD PCB Designer. It contains multiple symbols of components used in electronic schematic design/capture. OLB is also the filename extension of an object automation library used by Office productivity software suite. This OLB file contains data types, functions, and the properties/methods of objects available to process automation controllers such as Visual Basic and C++ tools used to create embedded applications for Office. Another type of OLB file is an object library used by Synergy/DE software development suite.

How to open OLB files

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

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Programs that open and convert OLB files:

OrCAD PCB Designer by Cadence
See the previous paragraphs to learn more about the main application. OLB files are often referred to as OrCAD PCB Designer cads because this type of file is primarily created or used by this software.
AUTOGEN
Medical Terminology Challenge (data) by Delmar Learning
Medical Terminology Challenge is a discontinued medical terminology game. It uses some data saved in an OLB file. This file format is classified as CAD.
Office (automation object library) by Microsoft
Office is an office productivity software suite featuring word/spreadsheet processing, presentation, and database management applications. Office application use an OLB file to store data types, objects, and functions used by process/task automation controllers. This file format is classified as Executable.
OpenVMS (object library) by VMS
OpenVMS is a virtual memory-based operating system written in C, BLISS, DCL, and VAX MACRO languages. It uses an OLB file to store its VAX (Virtual Address eXtension) object libraries. This file format is classified as Developer.
PSpice (symbol models library) by Cadence
PSpice is a digital/analog circuit logic simulation program. An electronic component symbol library used by PSpice is saved in an OLB file. This file format is classified as CAD.

OLB format details:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. If there are problems opening a file, you must first determine the file format used. In the following you will find our evaluation of the OLB files:

The OLB file extension is rarely used and is used by a few programs, each with its own file format. The two most common formats are as follows:

40% of all OLB files are based on the popular EXE file format. EXE is the abbreviation for executable and is the standard executable file format on Windows. The format can be identified by the letters "MZ" at the beginning. Executable files can also be used to distribute viruses and other types of malicious software (malware). They consist of unreadable binary data. OLB files can be up to 930 KB in size, but are often around 14 KB - 630 KB. This file type was primarily in use more than 20 years ago. The following keywords are characteristic: !This program cannot be run in DOS mode and Rich. The file name MSADDNDR.OLB or VBE6EXT.OLB is characteristic of these files. These files are often associated with msword, excel and msoutl.
40% of all OLB files use the Microsoft Compound File format, also known as Composite Document File format or OLE2 compound document format. Compound document files are used to structure the contents of a document in the file. It is possible to divide the data into several streams, and to store these streams in different places in the file. In this way compound document files support a complete file system inside the file, the streams are like files in a real file system, and the sections are like subdirectories. Compound files begin always with signature bytes D0 CF 11 E0 A1 B1 1A E1 (ÐÏà¡±á). Sections and streams in the file are named Cache, Cells, Cells Directory, ExportBlocks, ExportBlocks Directory, Graphics, Graphics Directory, Library, Packages, Packages Directory, Parts, Parts Directory, Symbols, Symbols Directory, Views, Views Directory and NetBundleMapData. The file size is in the range of 6 KB to 270 KB. Files like these are about library, symbol and model.

All other OLB files (20%) have no consistent format, the following 4 formats exist: ROS. Drag & drop your file here to see the file format and a preview of your OLB file!

Technical Data for OLB File Extension

File classification:

CAD

Related files:

dll, exe, opj, lib, zip, smv, min

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: OrCADCaptureCISDemo10.0.0
EXEFile: C:\OrCAD\OrCAD_10.0_Demo\tools\Capture\Capture.exe %1

ProgramID: OrCADLibrary-FileType
EXEFile: %ProgramFiles%\ORCAD_~1\Capture\Capture.exe /dde

ProgramID: Oracle.objLibrary
EXEFile: C:\orant\bin\ifbld60.exe

ProgramID: Oracle.objLibrary
EXEFile: C:\oracle\Form6ip7\bin\ifbld60.exe

ProgramID: Oracle.objLibrary
EXEFile: d:\orant\bin\ifbld60.exe

ProgramID: OrCADCapture9.2.3
EXEFile: C:\Cadence\PSD_14.2\tools\Capture\Capture.exe %1

ProgramID: OrcadLibrary-FileType
EXEFile: C:\OrCAD\ORCAD_~1.5_D\tools\capture\capture.exe /dde

ProgramID: Oracle.objLibrary
EXEFile: C:\oracle\oradev\bin\ifbld60.exe

ProgramID: OrcadLibrary-FileType
EXEFile: %ProgramFiles%\OrCAD\OrCAD_10.5\tools\capture\capture.exe

ProgramID: OrCADCaptureCISLE9.20
EXEFile: %ProgramFiles%\OrcadLite\Capture\Capture.exe

ProgramID: Oracle.objLibrary
EXEFile: %ProgramFiles%\Oracle\dev2k\bin\ifbld60.exe

Show all 11 listings To Top

an olb symbol models library is a special file format by Cadence and should only be edited and saved with the appropriate software.

How to solve problems with OLB files

Associate the OLB file extension with the correct application.
Update your software that should actually open symbol models librarys. Because only the current version supports the latest OLB file format. Search, therefore, e.g. on the Cadence manufacturer website after an available OrCAD PCB Designer update.
To make sure that your OLB file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .OLB file online - secure, fast, and no downloads needed.