Here, you can download early-release versions of Statistical PERT®.

Download a new Statistical PERT® Normal Edition V3 with new visual features. This new early-release release of SPERT Normal Edition includes new visual features that show the implied bell-curve for each row, plus a new bar chart showing the summary bell-curve for all rows combined.

This download is Version 3.y, released December 1, 2018.  This is an early-release build and additional releases will occur before the expected production release in January, 2019.  Early-releases have NOT been thoroughly tested.  I welcome feedback and suggestions for improvement!

Important note:  Statistical PERT® is a free spreadsheet file; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Statistical PERT® and SPERT® are federally-registered trademarks. If you modify this spreadsheet in any material way, please remove these trademarked names from the modified spreadsheet.

Statistical PERT® is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details (

Before downloading, please check out this site’s privacy policy and no-warranty claim.  If you download this file, you’re implicitly agreeing to this site’s licensing terms, privacy policy, terms of agreement, and lack of warranty, even the implied warranty of merchantability or fitness for a particular purpose.

Statistical PERT® Normal Edition with new visual features example workbook Version 3.y