The .olb file extension is most commonly used by Microsoft Office software applications. The OLB files contain object libraries. These libraries are referenced by the associated Microsoft application.
The .olb file extension is also used for VAX object library files, MTC data files, PSpice model files and AUTOGEN file.
Try a universal file viewer
File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.
If you have additional information about the OLB file format or software that uses files with the OLB suffix, please do get in touch - we would love hearing from you.