Demo version of Atom TechSoft for OST to PST recovery software is completely free. To download free OST to PST tool, visit Atom TechSoft official website and click the ‘Download’ button. Demo version is fully purposeful and allows you to recover corrupted or damaged OST files. You can also save 20 items from each recovered folder. However, to save more number of items, This Software able to convert OST emails and data into 9 formats that all formats are : PST,EML,MSG,VCF,EMLX,TXT,DOC,HTML,MBOX. ATS OST recovery software is really works on damaged or corrupt OST file and makes readable OST emails easily.