Split PST Size Limit - Version 2.2 If your PST file has reached at its maximum limit that may cause your Outlook PST file like corruption may occur as well as your system would perform at slower execution rate. To overcome the problem PCVITA Split Magic software is an efficient tool. Size Limit in Outlook PST is always a problem, but versatile PCVITA Split Magic split PST size limit into three ways; Split By Size - This option is to split by Size, Split Magic offers you to split your one PST into various PSTs according to file sizes like (256MB, 512MB, 1GB, 2GB, 3GB & 4GB parts).Split by Size: Split magic offered you to split PST into various segments according to the dates you have selected.Split by Year: Another way is split by Year; this option provides you PSTs according to Year you have selected.