The eSoftTools OST to PST Converter Software is the greatest option for converting OST to MBOX at no cost. For exporting OST files to MBOX and other formats like PST, EML, EMLX, MSG, HTML, NSF, and Office 365, this program has sophisticated features. It works with every Windows OS version up to Windows 11 and has no risks at all. In addition, you can convert up to 25 items from each OST file using its free demo edition, which lets you test out the software's features before you buy it.

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