Today user all over the world are asking how to convert multiple file OST to PST free easily. There are various methods available for this purpose but OST to PST Converter is best among them. It is a third party software which convert multiple file OST to PST free in one time processing as it perform batch migration. The software offer multiple file naming combination to facilitate user to find OST files easily after conversion. The tool is designed in such a way that it can be easily handle by any user whether they are technical or non-technical. It has user friendly Interface. If you want to know practically how to convert multiple file OST to PST free download OST to PST Converter trial version. The trial version allow user to convert first 25 OST files to PST for free of cost.