OLK, OLK14, OLK15 files belong to Mac Outlook and it generated as the backend data file. These olk14 or olk15 files are only Mac Outlook application readable and cannot be opened and viewed. However, with the help of SysTools Free OLK viewer tool, a user can open and read OLK file and also Disk Image File (DMG). The OLK file opener tool to view OLK File through DMG extraction that enables user to open OLK file stored within DMG File on a Windows OS. A user need to Choose the File Option & browse DMG File on your Local System. The OLK file reader will help to open OLK File by extracting a single file. OLK15 file viewer represents a message or message source or even the corresponding attachment. Opening one file at a time is a time consuming process and ends up causing inconvenience to users. Thus, OLK reader tool is built to support the option of viewing multiple Mac Outlook 2011 OLK14 or OLK15 message files by providing an option to choose Main Identity Folder created by MS Office Suite. A user need to Choose the Folder Option & browse Main Identity Folder on your Local System to open OLK File within its sub-folders. The application supports any size OLK file and any type in any Windows OS such as 10, 8.1, 8, 7, Vista, XP, Server 2008, Server 2012