Different PST split options are available with our newly upgraded v4.0 split PST software. With every edition of MS Outlook like 2000, 2002, 2003, 2007 and 2010 (32 or 64 bit) users can run our PST splitter software. Once users cut Outlook PST into smaller parts their entire trouble of “unable to expand the folder” gets resolved. Very often when size of PST file gets exceeded then it starts errors of «unable to expand the folder». In this kind of issue you are confused what to do. Dear users no need to worry about this error we have fabulous split PST software that defiantly solve your problems. When the error message shows on your screen «Unable to Expand the Folder» you can split your folder into smaller parts then you realize this is perfect way to avoid corruption of Outlook. Split PST software capable to split large size folders into small parts, you can split according to your requirement there are options that is: 1st split large PST file by date, 2nd split large PST file by size, 3rd split large PST file by folders, 4th split large PST file by selected folders, 5th split large PST file by year. Split large PST software supports all Outlook and Windows Versions. Install demo pack of split PST software and get chance to cut 50 Outlook PST files into small sections without any payment in return. Complete edition of PST split tool is available at a cost of $49 only which authorizes users to break unlimited PST files. Know more: http://www.splitpst.com/unable-to-expand-the-folder.html