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# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
2 File Associations

.OLB File Extension

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File TypeOLE Object Library
DeveloperMicrosoft
Popularity
4.0 (2 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryMisc Files
File Format Description

Object library that contains data types and constants referenced by MS Office components; may cause certain Microsoft programs to not function correctly if moved or renamed.

OLB files are also referred to as Office Object Library files.

Program(s) that open .OLB files
Updated 4/14/2009

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File TypeOrCAD Symbol Library File
DeveloperCadence Design Systems
Popularity
3.5 (2 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryCAD Files
File Format Description

CAD file used by OrCAD, a program used for designing printed circuit boards (PCBs); saves "symbols," which are the electric circuit components that can be put together to construct a PCB design; often used as a library for defining virtual circuit components that match the specifications of real-world circuit components.

OLB files are often included as part of an OrCAD project (.OPJ file).

Program(s) that open .OLB files
Updated 10/25/2011