Install software to open files. Users can’t open OLK15MESSAGE files if no compatible program is installed. Download Office 365 or Microsoft Outlook to address this.
Associate OLK15MESSAGE files with the right application. On Windows, right-click file, Open With, Choose another app. Select program and check box. On Mac, right-click file, Open With, Other. Choose program and check Always Open With box.
OLK15MESSAGE files store temporary data. Use Gladwev Recovery Tool to retrieve messages. File Viewer Plus opens 400+ formats.
Mac and Windows operating systems may need different software for OLK15MESSAGE files. Office 365 and Microsoft Outlook are common compatible programs.
Outlook for Mac uses OLK15MESSAGE file format to store messages. If Outlook database is corrupted, OLK15MESSAGE files could help restore it.
Files with OLK15MESSAGE extension are for Mac operating systems and Windows. Office 365 commonly handles these. Reasons these files can’t open include lacking compatible software. Fix by getting Office 365.
Microsoft Outlook for Mac uses OLK15MESSAGE format. If Outlook for Mac database corrupts, its data could be in OLK15MESSAGE files. Decrypt and import those into Mac Thunderbird. Direct utility to convert Outlook to Thunderbird format not available. Need way to open Outlook OLK files in Thunderbird on Mac.
Microsoft Outlook for Mac