OST files are one of the secured data files of Microsoft Outlook. However, you cannot access it to other devices as you can open it where it created. That is why people usually convert an OST file into PST. Nevertheless, this neither a good option. The most valuable way of accessing your OST data from anywhere is to move your OST data file to Exchange Online platform. Office 365 being a cloud environment provides an advanced layer of data security with higher accessibility. For this, I suggest you the most reliable software MailsDaddy OST to Office 365 Migration Tool that allows you to import OST file to Office 365 account without compromising with your data safety. It is a flawless application to perform OST to Office 365 conversion without any error. Features: • Suitable for multiple and large size OST data files. • A GUI based OST to Office 365 Converter. • Migrate multiple OSTs to multiple O365 mailboxes. • No OST file size limitation to use this application. • Direct migration without any complexity. • Several filter and OST preview options. Read More: https://www.mailsdaddy.com/ost-to-office-365-migration-tool/