The OST Converter software provides an easy-to-use interface for users to upload offline OST file to Outlook PST file format accurately. It allows users to select the OST files they want to convert, and then choose various options such as the output location, file naming convention, and more. The software also supports batch conversion, which allows users to convert multiple OST files to PST at once. OST Converter software offers several advanced features such as the ability to maintain folder structure during the conversion process, support for non-English languages, and the ability to recover deleted items from the OST file. It was compatible with both Mac OS and Windows OS.