Don't you know how to open the OST file? We will help you.

File Extension OST

While searching for an answer to the question - How to open the OST file? - you probably found websites, which offer software that was able to open any file extension. Do not be fooled, there is no one program that will allow you to work with any file extension, including the OST file. Each program contains a different type of data and you need specialized software to properly work with the OST file. Here is a list of programs that are designed to work with the OST file - remember, these applications are able to open at most a few file extensions, they are designed to work with a specific data type.

File type Microsoft Outlook Inbox Off-line Folder Format
Developer Microsoft
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Programs that open the OST file

Common problems with the OST file

OST file is damaged

If after installing the program from a list, you still cannot open a file with the OST extension, the reason may be that the file is damaged. The solution may be to find a new copy of the OST file you want to open

The OST file extension is not linked with the appropriate application

In this case, the easiest way is to use the tool built into the operating system for association of the OST file with applications to support it. Double click on the file you cannot open - the operating system will display a list of programs that are likely to work with your OST file. Choose one of them, or select the location on a disk where you installed one of the applications from our list. Windows should then open the OST file using the program installed earlier.

The entry for the OST file in the "Windows Registry" has been removed or damaged

Entries containing links of the OST file extensions with applications is located in the HKEY_CLASSES_ROOT. If you do not know how to get to the Windows Registry, or how to make changes in it, ask a specialist for help. Lack of knowledge on the subject may cause irreversible changes on your computer.

The OST file is infected by a virus

There may be a situation when a computer virus passes itself off as the OST file. In this case, such a file will definitely not be opened. Download a good antivirus program and scan the OST file mentioned. If the antivirus application detects malicious data, it may signify that the OST file is infected.

Similar file extensions

OSA W32/Sober-AD
OSX Apple Mac OS PowerPC Executable Format
OSB OpenStreetMap Binary Map Format
OST Microsoft Outlook Inbox Off-line Folder Format
OS ObjectScript Source Format
OS2 Os2 System
OSW ONESWING Contents
OSCD TouchOSC Interface Editor Template
OSD Open Software Description
OSR Osu! Game Replay Format