To export OST to PST files you are recommended to install a reliable tool like Kernel for OST to PST. The tool has been designed with complicated algorithm which is dedicated to perform such conversion and provide ample support to migration of OST data files to cloud-based migration. The tool also provides an option to save the data to DBX, MBOX, MSG, EML, TXT, RTF, HTML, MHTML, & PDF files. During entire process the data integrity is maintained.