The OST converter tool available for Mac & Windows. Download according to your needs.
For Mac OS 10.11 or higher.
For Mac OS 10.7 to 10.10
Note: If your OST file is on a NTFS formatted external drive, then please copy the OST file to a folder on Mac desktop and convert from there. It will convert as expected.
Now OST Extractor Pro is Outlook independent (Microsoft Outlook is not required). If you have Windows 32 bit then please install “OSTExtractorProSetup_x86.exe” installer or if you have Windows 64 bit then please install “OSTExtractorProSetup_x64.exe” installer.
For Windows 32bit OS
For Windows 64bit OS