PC.net

.olb

File Type Generic IconOLE Object Library
File Format Proprietary (Microsoft)
Usage Referenced by an application; not meant to be opened manually
Rank ★ ★ ☆  Average
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.

Open With
Windows

IconMicrosoft Word

IconMicrosoft Excel

IconMicrosoft PowerPoint

Updated 2007
Information from the PC File Extensions Reference
https://pc.net/extensions/file/olb
space