From the Import & export wizard window, choose ‘Import from another program or file’ option and click Next button.
Go to the File tab and then go to ‘Open’ option, and then select ‘Import’ option to import files into Outlook.For this follow the mentioned steps accurately: Once the data is fully downloaded from the server, then you can import the PST files to new OST files. For this, the user is suggested to delete the OST file and MS Outlook application need to re-download the information from the Exchange Server.
Outlook provides an inbuilt tool (scanost.exe) to verify the integrity of synchronized offline storage table files manually. Hence the user is displayed “Cannot open OST file” error message. This error “Cannot open OST file” occurs when MS Outlook application automatically creates new offline storage files for which Exchange Server refuses to identify them. No matter how many times you try to access the OST files, it will display the same message. In this condition, the information stored in OST files turns inaccessible including email messages, contacts, calendars, tasks etc. You must access Exchange at least once to use the OST file.” When you try to synchronization the OST files with Server, user is generally displayed an error message like: may disturb the normal synchronization routine. Any changes made in the OST files get automatically synchronized with Exchange Server when the internet connectivity is back.īut in some unfavorable conditions such as accidental deletion of OST files, downtime issues or networking connection failures, corruption of OST files due to oversizing issues (more than 2GB), virus attacks, abrupt termination of Outlook etc. For this MS Outlook is connected with a server-side application like Exchange Server to ensure smooth synchronization of data between the offline folders and the server. Offline storage table (OST file) is one of the important Outlook data files to view, create, delete and manage your mailbox items even in offline mode.