Practical Software Statistical Process Control (PSSPC) Pro provides most necessary functions, plot both control charts X-Bar/Range and individual/moving range, plot histogram chart, chart picture export, rich of statistical calculated parameters like standard distribution, UCL, LCL, CL, Est. Sigma, CpU, CpL, Cp, and CpK, chart zoom and scroll, view the raw data, support Microsoft Access database formats since 97, 2000, and 2002, Microsoft Excel, Microsoft SQL Server, ODBC. Update detail: fixed bug for software error while recalled to open the data file when software starts but the folder that keeps data no longer exists.