05 Instant Ways to Open OST File (without Outlook) on Windows

Summary: Outlook OST files are Offline Storage Table files. It stores data when you’re working offline or connected to an Exchange Server. However, there are times when you may need to open an OST file without Outlook or Exchange access. If your OST file is damaged or you just want to look at your emails, there are several easy ways to open the Outlook OST files quickly. In this blog, we’ll explain five simple methods, including the top OST File Opener to open OST files. Download Now   Purchase Now

What is an OST File?

An OST file is created when you use Outlook with an Exchange or IMAP account. It allows you to work offline by storing a local copy of your mailbox. Any changes you make offline (such as sending emails or creating appointments) are synchronized with the server once you’re back online. However, you cannot open an OST file directly using Outlook or any other mail client if the connection to the server is lost or if Outlook becomes corrupted.

Top 5 Techniques to Open OST Files with Ease

If your primary goal is to view the contents of an OST file without the need for Outlook or another complex process, then OST viewers are very helpful. These tools allow you to open and view the content of OST files without converting them into PST. Even you don’t need to be a technical expert to use the recommended software. Other than that, you can also use Outlook to open OST file in Outlook. Let’s move to the next section and see how to do this:

• MS Outlook Help OST File Opener
• Aryson OST Viewer Tool
• ConverterTools OST File Viewer
• SysInfo OST File Viewer Tool
• Microsoft Outlook

Technique 01: MS Outlook Help OST File Opener

The OST File Opener is the best solution to open orphaned OST files in just a few clicks. It is particularly useful to access and recover data from OST files that are inaccessible through Outlook itself. It helps users to view emails, contacts, calendars, and other items stored in OST files. Also, it provides an option to save the recovered data in a different format if needed. Apart from that, it has some additional features that we will discuss further:

Proficient Key Feature of the Software:

• It allows OST files to open and read without Microsoft Outlook.
• Simply displays inbox contents, such as contacts, tasks, calendars, emails, and events.
• It works without issues on all Outlook versions, including 2016, 2013, 2010, 2007, and 2003.
• Also, it includes a feature that allows data export in the form of HTML files.
• Along with that, it creates log files at user-specified locations.
• Moreover, it shows Outlook OST data from both regular and damaged files.

Technique 02: Aryson OST Viewer Tool to Open Orphaned OST File

The Aryson OST Viewer Tool is designed to help users view and analyze the contents of OST files. If Outlook is not installed or if you need to retrieve data from the OST files, you can frequently use this software. The user interface of this software is too easy, even for non-technical users also. This utility is also compatible with all versions of Exchange Server and MS Outlook. Here are some inbuilt features of the software.

Proficient Key Feature of the Software:

• It allows users to open and view OST files, including emails, attachments, contacts, calendars, and more.
• Apart from that, you don’t need to have Outlook installed to use the viewer.
• Also, it preserves the original structure and formatting of emails and other items.
• Includes search options to easily find specific emails or other items within the OST file.
• View emails from OST files and save each attachment in PDF format separately.
• Previews OST file emails and save them as TXT, HTML, PDF, and other file formats successfully.

Technique 03: ConverterTools OST File Viewer

The ConverterTools OST File Viewer is a tool designed to view and access the contents of OST files, which are used by Microsoft Outlook to store data offline. A user with or without any manual expertise can use this software frequently. With the help of this software, you can open and view the essential mail data associated with your OST file. You can also go for other file formats to save your OST data. Just go through the advanced features of the software:

Proficient Key Feature of the Software:

• You can view email messages, contacts, calendar items, and other data stored in the OST file.
• It helps to export data to different formats like PST, EML, or PDF.
• This software supports various versions of Outlook.
• Also, it can create a log file containing all of the scanning procedures.

Technique 04: SysInfo OST File Viewer Tool to Open OST File

The SysInfo OST File Viewer Tool is a quick and simple solution to open OST file without Outlook. You can access the contents of OST (Offline Storage Table) files without the need for Microsoft Outlook. This tool is particularly useful when OST files become inaccessible, or when users simply need to open them without Outlook. By which you can extract specific information from OST files. Further, we will see the advanced features of the software as well.

Proficient Key Feature of the Software:

• It will help to Open and view OST files without Microsoft Outlook and Exchange Server.
• Supports various versions of OST files, including those from older versions of Outlook.
• The tool is easy to use, even for users with limited technical skills.
• There are no size limitations. Thus, it is capable of opening large OST files.
• Provides a preview of all mailbox contents, including emails, attachments, tasks, calendars, etc.

Technique 05: Manual Procedure to Open OST File in Outlook

OST files cannot be directly opened in Outlook. You must convert the OST File to PST first. After converting your OST file to PST, perform the below-given steps and open them manually in your MS Outlook application. The steps are as follows:

• First of all, open Outlook.
• Next, click on File >> Open & Export >> Import/Export.
• After that, choose Export to a file and click Next.
• Now, select Outlook Data File (.pst) and click Next.
• Choose the mailbox or folder from your OST file that you want to open.
• Lastly, choose a location to save the exported PST file, then click Finish.

Note: This method only works if Outlook can still access the OST file (i.e. if the profile is still active). Otherwise, this manual method does not work properly. If the OST file is corrupt or inaccessible, you need the OST Repair Tool to repair or convert the OST file.

Frequently Asked Questions