OST file stands for Offline Storage Table, which is an offline copy of the Exchange mailbox. You can open OST file in offline mode, andmake changes in it.The changes made in the OST file will get automatically updated by synchronization when connected with Exchange Server.
Where is the OST file located? OST file can be found without opening Outlook/ Exchange by 2 ways..
You will find the OST file at this default location- C:\Users\user\AppData\Local\Microsoft\Outlook Or C:\Documents and Settings\\Local Settings\Application Data\Microsoft\Outlook
In OST Viewer tool, Search option automatically extracts all the stored OST files from the specified drive at one go.
To perform this, enter the drive location and click Search in Source File Selection dialogue box. All the OST files are extracted at once, thus making the task of locating OST file convenient for users.
Opening OST mailbox items without Exchange profile/connection
Know all the crucial features integrated with the tool to open and view all kinds of OST files.
Access OST Files Without Exchange Server OST Viewer tool allows access to Exchange Offline folders file (OST) without establishing a connection with MS Exchange Server. The tool scans the OST file and displays its entire content, including emails, calendar items, notes, contacts, etc.
Find and Open Emails Use its integrated ‘Find’ option to access specific email items. In the selected mailbox folders, you filter the emails by From, To, Subject, Date Range, Attachments, etc. Thus, you can locate and preview specific emails.
Saves Email List in HTML The OST Viewer tool allows you to save the list of OST emails in HTML format. You can copy or print this list. The tool also provides access to email attachments in a single click.
Opens All Kinds of OST Files OST Reader tool is capable of opening orphaned, inaccessible, or corrupt OST files. The software is well-prepared to open OST file without connecting to an Exchange profile
Search OST Files The tool makes the finding OST files easier with the Search option. This option locates the OST file within the specified location. You need to enter the drive in which you know your OST file is located. The tool will automatically fetch it, and you can open OST file by clicking on it.
Open Multiple OST Files You can open as many OST files as required. There is no restriction on the number of OST files to view. Use + button to add multiple OST files in the Source File Selection dialogue box. This feature saves the users’ time from adding individual OST files one-by-one.
Generates File Analysis Report Free OST Viewer tool creates reports having details of all item types such as emails, contacts, email flow density as per sender or data, notes, etc. It helps you analyze the OST file data.
High Software Compatibility Kernel OST Viewer Free tool extends support for all versions of MS Exchange Server (2019, 2016, 2013, 2010, 2007, 2003, 2000, 5.5, and 5.0), MS Outlook (Office 365, 2021, 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98, and 97).
Note: You can also generate an analysis report. For this, you need to select the type of report you want to generate from the right corner of the screen.
Windows 365, 11, 10, 8.1, 8, 7, Vista, XP, 2000, 98, NT, 95
50 MB of disk space
64 MB RAM (128 MB Recommended)
Intel® Pentium Processor compatible (x86, x64) or equivalent