{"id":3095,"date":"2024-02-23T06:18:20","date_gmt":"2024-02-23T06:18:20","guid":{"rendered":"https:\/\/www.mailconvertertools.com\/blog\/?p=3095"},"modified":"2025-07-04T11:27:00","modified_gmt":"2025-07-04T11:27:00","slug":"convert-ost-to-csv","status":"publish","type":"post","link":"https:\/\/www.mailconvertertools.com\/blog\/convert-ost-to-csv\/","title":{"rendered":"Quick Guide to Convert OST to CSV File Format [Best Techniques]"},"content":{"rendered":"\n\n
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Summary:<\/strong> This blog details different solutions to convert OST to CSV. Many users search for methods to export OST file contacts into CSV format. Therefore, here you will explore a manual procedure using the Import\/Export feature. Besides, you will also get to know about a professional MailConverterTools<\/strong> OST to PST Converter<\/strong><\/a>. First, read the blog till the end and then choose the best-suited method to move files from OST to CSV, as per your requirement.<\/p>\n

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Outlook<\/strong> saves its mailbox data into Outlook data files, namely OST and PST. While working offline or using Cached Exchange Mode, Outlook data is stored in OST. OST is short for Offline Storage Table. Whereas PST is used to create a backup file of the Outlook mailbox. Often, Outlook encounters errors, and users are unable to access the OST file data. Therefore, to make the data more accessible, users export OST Files to CSV.<\/p>\n

CSV or Comma-Separated Value<\/strong> is a text file, storing data in tabular format. This file uses commas to separate saved values. It is a widely compatible and user-friendly file format. So, you can access it through various applications such as Microsoft Excel, Google Sheets, Notepad, and MS Outlook. Thus, let us explore how to convert OST file to CSV file – manually and using tools.<\/p>\n

Manual Procedure to Convert OST to CSV<\/h2>\n

To export contacts and other mailbox items from OST to CSV format, use the Import\/Export feature of MS Outlook. But before that, you need to follow some prerequisites. You need to have:<\/p>\n