What is BK2 File Extension?


The file extension is a type of Windows Indexing Service Data File. The file extension is taken care by Microsoft Corporation. The main goal of the file extension is to index and store the system info for multiple operations like search. The indexed data of BK2 is stored in the text file format. The indexed data is saved to a catalog which users can use any time.


The BK2 file extension comes in the category of System Files.


The file format it supports is Binary.

Apps to Support

Windows Operating System 7 & 8




The file extension is developed and taken care by Microsoft Corporation.

Location of the File Format

It is saved by default in C:\System Volume Information\catalog.wci\

How to View the BK2 File Extension

It can be viewed in the Windows Operating Systems, depending on the type of version you are using.