If you have a bunch of OST emails that you would like to transform into other, more accessible file formats, you can try Stella Data Recovery OST to PST Converter. It's a simple and straightforward Windows application that can convert OST to PST, EML, EMLX, MSG, VCF or HTML format.

Following a speedy setup operation that shouldn't give you any trouble, you're welcomed by a standard interface where there are no complicated options involved.

Buttons on the left side of the window are responsible for opening OST files, saving them in different filetypes, as well as for stopping the conversion operations if you change your mind in the middle of it.

After opening an OST file, you can check out all containing folders and messages organized in hierarchical view. Checkboxes are placed next to each folder and subfolder, so you can either select everything for conversion or leave out any items you're not interested in.

Email information includes the sender, receiver, subject and date and time. Plus, you can click an email's entry to read the full message.

The conversion process can be just as effortlessly done. Besides picking an output directory for saving all new files to, you can choose the new format from PST, EML, EMLX, MSG, VCF and HTML. It's not possible to create files of different format at the same time.

A message is shown at the end of the task to let you know it's over. If you take a look at the output directory, you can notice new subfolders created by Stella Data Recovery OST to PST Converter, one for each conversion job. The subfolder name represents the time of the task so there can be no confusion when running consecutive conversion sessions.

Unfortunately, the program ignored the folder selection in our tests and converted everything instead. On top of that, it doesn't come bundled with extra features, especially when taking into account that there are dozens of similar apps out there offering the same set of functions. Nevertheless, Stella Data Recovery OST to PST Converter worked well.

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