Jon Wittwer, PhD. President of Vertex42 LLC
Our goal is to help people manage their time, their finances, and their careers, by providing simple tools in the form of high quality spreadsheet templates, calculators, calendars, resumes, and articles that are designed to educate and increase productivity.
Vertex42 LLC was founded on April 29, 2003 by Jon Wittwer while he was working on a PhD in mechanical engineering. Vertex42.com has since evolved into the ultimate nexus for spreadsheet templates, financial calculators, and time management tools.
Problems? Before contacting us, see our new Support Page.
If your questions are not answered via the support page, contact Dr. Wittwer using the address shown in the image below. If in your email you do not say "I have read through the support page," the first reply to your email will likely be "Please visit the support page."
You will need to type the address into your email program manually. If you are asking a question or reporting a problem, please be sure to include the following information in your email:
- The URL of the page that you are referring to (e.g. http://www.vertex42.com/ExcelTemplates/...html)
- The exact name of the template file you are referring to, such as gantt-chart_L.xls. Saying "your calendar template" is not specific enough.
- The version of Excel you are using (2002, 2003, 2007, 2010, etc.) and whether you're on a Mac or PC
Are you a Vertex42 Fan?
If you want to keep up with what is new at Vertex42 (new templates, articles, Excel tips, etc.), or simply want to show your appreciation, check out our profiles on the following social media platforms:
|Follow us on
Follow us on
|Follow us on
Follow us on
If you need help customizing a template or have a more substantial Excel project that you need help with, please see our list of Vertex42 Approved consultants.
Vertex42 - The Answer
Our goal is to help you achieve excellence in life and in the workplace, using spreadsheets as tools to give you the answers you are looking for. In case you were wondering, there are a lot of double meanings in the phrase "The Guide to Excel in Everything" when used to describe Vertex42. "Excel" is a verb, and yes, the "42" means something.
Mailing Address and Phone
12320 Tamarac Trl NE
Albuquerque NM 87111
We do not provide technical support or answer general questions via phone. In the past, I have listed my phone number here, but people end up calling even though I've asked them to send email instead. People all around the world use my templates, and end up calling at crazy times of the day. In short, please email. I usually respond to legitimate, non-spam email a lot sooner than I respond to phone messages, anyway.
Vertex42 LLC is registered as a Limited Liability Company in the State of New Mexico, USA.