Convert OST to CSV Using Free and Paid Software

Written By Andrew Jackson
Anuraag Singh
Approved By Anuraag Singh
Published On August 14th, 2023
Reading Time 6 Minutes Reading

By writing this article, I will be explaining the trusted and secured solution to convert OST to CSV format. Solution for users who want to read OST data in CSV format.

Outlook is equipped with Import/Export option. It means you can easily export OST file contacts into CSV format for free. Outlook itself provides options to export OST file mailbox into CSV format. But it has certain limitations.

Method-1: Export OST File Contacts to CSV Manually

Simply use Import/Export inbuilt utility in Microsoft Outlook and export contacts and other mailbox items from OST to CSV format. All you need, just follow the below listed steps:


  • Active Exchange Server Profile.
  • Exchange Server Connectivity.
  • Outlook Should be Installed and the same profile must be configured.

If you have all these, then follow this step, otherwise move to method 2.

  • Step1: – Launch the Outlook and click on File from the menu bar.
  • Step2: – Click on Open and Export and after that Import/Export.
  • Step3: – After that select Export to a file and hit Next.
  • Step4: – Here select the Comma Separated Values option and click Next.
  • Step5: – Select the folder from which you want to export files in CSV format. (Note: It limits you to select only one folder at a time.)

Limitation of Manual Method

  • Cannot Export contacts from Orphaned OST
  • Unable to Extract Contacts from Another User OST File
  • Outlook Installation and Server Connectivity Necessary
  • It also provides limited data only
  • It allows to export only one folder at a time from OST to CSV format

Let’s move experts verified and recommended solutions to save the contacts from OST files in CSV format. Let’s check out the capabilities of the tool.

Method-2: Convert OST to CSV Format Using Software

In this section, we will focus on the outstanding features that make this software stand out from the crowd. I believe that this software converter tool has shown its efficiency in terms of processing and converting OST files without making things complicated for the user.

The best part is that it supports all MS Windows OS versions. Following are some features that exist in this OST to CSV converter tool. Apart from CSV the tool support converting OST file into PST and 13 other formats.

  • Export All Attributes from OST to CSV Format

SysTools developed an all-in-one software to export all items from OST file to CSV format. It allows to export emails, contacts, calendars, task, journals, attachments (in separate folder), etc. You just need to install and launch the tool on your system and browse the OST file in it. After this the tool will provide you to preview view and allow you to select one export option form list. Choose CSV and export complete data.

  • Batch OST file to CSV Conversion

Be it a single file/folder or batch files/folders, not a big deal for this converter tool. It can convert OST files to CSV or any other format easily and takes less amount of time to export the OST files.

  • Software Security Factors

To deliver best-in-class security is the priority, when converting files, there is a high chance of getting personal sensitive data leak. To ensure that data is protected, this OST to CSV converter tool provides top-notch security to make sure that there is no data loss or any data corruption. Get the expert guide to convert your OST file to DOC Format.

  • Multiple Conversion Format Option

This tool offers different formats to export contacts OST files to CSV and many other formats. While using this converter tool, users can preview OST file data in many formats like in HTML, Normal view, HEX, MIME, etc. Users have the choice to convert or preview it in any format without any difficulty.

Simple Process to Convert OST to CSV Format

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Step1: – Download and Launch OST to CSV converter. Click on the Add File button.

Add OST File

Step2: – Select the OST files to export in CSV format and preview complete data.


Step3: – Press the Export button and continue the conversion process of OST file contacts to CSV format.

Select Export Option

Step4: – Select the CSV option and apply advance settings. After that browse the location and click the Export button.

OST file to CSV

Step5: – Navigate to the provided location and view the CSV file created from the Outlook OST file.

conversion completed

Some Extra Information

Currently, many individuals use the Outlook OST file format to access and work, send an email, and share data with each other this is how users communicate using an email client and Outlook is one of a kind. Which provides smart and proactive features for Outlook using customers.

Most people use CSV (Comma Separated Values) format, which is a delimited text file that makes use of a comma (,) to discrete values. Each line contains a data record. And each record contains single or multiple fields separated by commas. These are conventionally used in spreadsheets and databases
Using CSV file user can transport data between programs that are not usually able to interchange data files.

When we talk about Outlook OST, it is one of the file formats used by Outlook. When a user’s Outlook account is configured with IMAP protocol Settings, it creates a replica of that OST file and saves that copy on the exchange server with the help of an internet connection.

This indicates that without having any restriction in terms of network users can work offline. Later, when the network connection is established, the exchange server and the local system gets synced and all the data present on the local system gets copied onto the server.

After all this brief explanation about accessing Outlook OST files, people do suffer a lot while reading OST files in Outlook. Now, they are searching for a solution to convert OST to CSV format. Because CSV format is easily accessible by the users who use Outlook. And they find it easy to read data in CSV format.

To answer this question, my advice will be to use OST to CSV converter tool to convert your OST files. Also, I will strongly suggest that using a manual method to convert OST to CSV format will be the worst decision if someone is dealing with crucial sensitive data.

Authors Suggestion

Using this software tool one thing is clear that this OST to CSV converter tool is a trusted and reliable tool to use. Without any data loss this tool can export files with that it maintains the folder structure after converting. From an expert point of view, I can say that users can rely on this software and easily convert OST to CSV format.

However, It also makes it easier for the users to make decisions and use filter data as required by the user by using the advanced settings option. This tool has shown its performance which is the best in the market and amazing features added to this software make it an outstanding converter tool.


By Andrew Jackson

I am SQL DBA and SQL Server blogger too. I like to share about SQL Server and the problems related to it as well as their solution and also I do handle database related user queries, server or database maintenance, database management, etc. I love to share my knowledge with SQL Geeks.