I would like to suggest another smart utility merge PST files as this utility has topped among all the PST Merge Software in combining PST files in a single go. The software is well capable to join Password Protected and Archive PST file. The software has advanced options like removes duplicates and junk folders of PST file, Merge any size of Outlook PST file. So by using this PST Merge tool, you can easily merge large PST files into single PST completely and safely.