OST File Extension

File Type

Outlook Offline Folder Format

Developer

Microsoft

Category

Misc Files

MIME

mime-type/not-avalible

Updated

10/19/2021

Details about the OST file

OST is the extension given to files that are used in 1 operating systems such as: Windows. The OST extension was originally developed for the Kernel for Exchange OST Recovery application. The developer of this program is Lepide Software Pvt. Ltd.. In addition, the Convert OST to PST, Outlook Recovery Toolbox, Microsoft Outlook, Advanced Exchange Recovery programs can be used to open files with the OST extension.

The structure of such files is typical of Misc Files. The OST file extension can also be found in 6033 in other file types and may not be supported by Kernel for Exchange OST Recovery or similar programs. The Outlook Offline Folder Format file format and the Kernel for Exchange OST Recovery program were developed by Microsoft. The Outlook Offline Folder Format file was most likely created using the Kernel for Exchange OST Recovery program. OST detailed description

Tools that you can use to work with OST files

OST File Extension

What is a(n) OST file??

OST files are used by Microsoft Outlook to store all your email messages and attachments in a single folder.

OST stands for Open .OST File. It's a compressed file that sits in your Outlook Offline Folder. It can be opened using the OST to PST converter tool which is easily available online.

OST File Tools

What tools are available?

We present some basic free online tools that work with OST. Through them, you can perform many activities related to OST for free. You will be able to open, preview, edit or convert your OST file.

OST File Opener

OST opener is one of the most used tools. Here you will find a way to open your unknown OST file. If you already open the OST file, you will have more options to work with the file.

OST File Viewer

The OST Viwer tool helps to preview the contents of a file without the need to install dedicated software. Go to the subpage, select your OST file you want to view and our tool will show you what the file contains

OST File Converter

If you cannot perform all the operations on the OST file, you can convert it to a different format. The OST file converted to the new format may have more options for editing or processing the data contained in it.

OST File Editor

OST editor helps in the process of editing the data in our file. Sometimes you need to be able to fully edit the contents of the OST file, in which case you may need to install dedicated software. On the editor page you will find all the information you need to edit the OST file.


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