Did you get an error message “Cannot open your default email folders, the file xxxx.ost is not an offline folder file ” while trying to access OST file? Resolve this error message by using OST to PST tool. Visit http://www.osttopsttools.org/

1. What is OST file?

2. OST files are offline folder files, which are
readable by users in offline mode. Thus, users
can access the information without connecting to
the Internet. Once the Internet connection is
available, OST file synchronizes with the
Exchange Server to update the changes made in
the file.
OST File:

3. OST File Error

4. Sometime, users fall out a situation when they
cannot access OST file, thereby become unable
to access emails and other mailbox items. An
error message is displayed
“Cannot open your default email folders, the file
xxxx.ost is not an offline folder file ”
OST File Error:

5. Causes

6. When OST corruption occurs, OST files
become inaccessible and series of errors
erupts during the synchronization of MS
Exchange Server and MS Outlook.
Causes:

7. Solution

8. 1) Identify the OST file, causing
the error.

9. 2) Exit the Outlook application

10. 3) Rename the OST file and then try
to reopen the Outlook

11. 4) Check, if the hardware is working
properly

12. 5) Delete existing Outlook user
profile and recreate

13. Ultimate Solution

14. OST to PST recovery is an ultimate third party
solution to deal with OST errors and to obtain
user desired results. It deeply scans OST file and
removes corruption from the root of the file. It has
capability to fix all errors regarding the OST file.
OST to PST Software:

15. After fixing error and recovering OST data, it
avails users with the facility to save data in
various file formats such as PST, MBOX, RTF,
DBX, PDF and others. It supports MS Exchange
Servers 2003, 2005, 2007, 2010, 2013 and
2016.
OST to PST Software:

16. Diagram
EML
MSG
MBOX
DBX
PST
TXT
OST File

17. www.osttopsttools.org