07-28-2025, 05:08 PM
The ideal option is Advik OST Converter, which can directly import OST to Thunderbird. Take advantage of the importing process by uploading additional OST files without size restrictions. Before converting, You may preview OST elements using a handy preview tool. You may be confident that the program will keep your files intact and structured by maintaining folder hierarchy and data uniqueness. You can download its free demo version to check its working procedure.