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Best Way to Convert OST to CSV Format


  • Published on:  August 26th, 2022
  • Updated on:  January 2, 2023

When you are looking for a solution to convert OST to CSV format, you can find several solutions over the internet. But most of the methods are very tricky, and chances of data alteration. Here you will get the best secure and reliable solution that can easily convert your OST file into CSV format along with step-by-step instructions.

All the databases of Microsoft Outlook are stored in OST files, and you can easily work in offline mode on OST files. But the OST file has some drawbacks; sometimes, it becomes unable to read the OST file on their PC and have chances of corruption.

Therefore, you must convert OST to CSV format that is ready to read. CSV file is widely used for storing the data separately. One can easily open the CSV file in a wide range of applications, including Notepad, Microsoft Excel, Google Sheets, MS Outlook, etc.

Why Users Prefer CSV File Over OST File

There are various benefits to convert OST to CSV format. Listed below are the most prevalent advantages to import OST file in Excel Sheets.

  • CSV files are widely supported on almost all devices. Therefore, you may access your inbox in CSV format on almost any device.
  • Creating a backup is advantageous since it allows you to retrieve your data when the file is accidental file deletion or mailbox corruption.
  • Outlook OST files are not appropriate for sharing. Consequently, the CSV file format facilitates the sharing of mailbox items.

These are the benefits of converting OST to CSV format. Learning how to convert OST files to CSV format has come.

Also Read: Migrate OST to MBOX

Manual Approach to Convert OST Data to CSV File

MS Outlook has a built-in option to export OST data to CSV files. Here we will discuss the manual steps to convert OST to CSV file format. Follow the below procedures.

  • Firstly, open the MS Outlook application on your device.
  • Now, tap on the File option in the menu bar.
  • Here choose the Open & Export button and hit the Import/Export icon.
  • Select the Export to a file option on the next screen and tap on the Next button.
  • Then, choose the Comma Separated Values option and click on the Next button.
  • After that, choose the desired mailbox item you want to export and move on to the next screen by clicking on the Next button.
  • Here tap on the Browse button and choose a location for the CSV file. Now, click on the Next button.
  • At last, hit the Finish button to complete the process.

When you execute the above steps successfully, you will successfully convert OST to CSV format. But, in this method, you will find some drawbacks. Let’s discuss the limitations of the manual method.

Drawbacks of the Manual Method

  • We will mention these limitations of traditional steps in the below section.
  • This method has some complicated steps that cannot be performed by a new user.
  • Manual steps are highly time-consuming.
  • Required some technical knowledge to perform the steps.
  • Data alteration chances are very high.

Professional Way to Convert OST to CSV Format

You can try the Cigati OST to PST Converter Tool to convert your OST file into CSV files and other file formats. It is the most secure and reliable software that works on advanced technology. This OST file converter tool can convert OST file to CSV. This software has a simple user interface, and non-technical users can easily perform the steps.

Top Rated Features of OST to CSV Converter Tool

  • This software allows you to convert OST files into CSV and other formats like OST to PST, PDF, MSG, MBOX, HTML, EML, DOC, etc.
  • This advanced software migrates OST files into different email clients like Gmail, Office 365, Yahoo Mail, Thunderbird, HostGator, etc.
  • You can choose single and multiple file selection features in choosing OST files.
  • Option provided to Mail Filter and Task Filter for specific migration.
  • Facilitates you to remove duplicate mail features to remove similar emails for better conversion.
  • This tool maintains the folder hierarchy to keep the files and folders in the same order.
  • Compatible with Windows 11 and all the below versions.

Step-by-Step Working Guide of OST to CSV Converter Tool

  • Firstly, download and launch this tool on your system.
  • Now, you can select a single or multiple OST files and click on the Browse button.
  • Here choose the OST file from your system to convert and press the Open button.
  • Tick the files and folders that you want to convert, then click on the Next button.
  • Now, choose the CSV file format from the drop-down menu.
  • On the next screen, select the additional features that users can choose as per their requirements.
  • Click the Path to Save button to select the location to save the output files.
  • At last, hit the convert icon to start the OST to PST conversion process.


In this blog, we have explained the best two ways to convert OST to CSV file format. Firstly, you have learned the manual approach, and this method has some limitations. Then, we have provided one of the best alternative professional ways to export OST file to CSV file format.