OST files can be converted by this free tool in Scanpst.exe in all versions of Microsoft Outlook
كيف يقوم المستخدم بتنظيف مخلفات الويندوز لتسريع نسخة الويندوز
You can convert OST to PST using specialized software like Stellar Converter for OST or Kernel for OST to PST Converter. These tools can help you easily convert your OST ... الإطلاع على المزيد
Steller OST to PST Converter
There is Kernel is best tool for converting .OST files to .PST files.
Stellar Converter should be prefered for this tgype of converting