SigmaZone Support

File format or File Extension is not Valid While the “file format or file extension is not valid” error is typical, some users have also reported the error “QuantumXLAddIn.xlam is not a valid add-in” which has the same root cause and workaround.  Root Cause – Windows Defender security setting and misleading error reporting When Attack Surface […]

How to launch Quantum XL, SPC XL, DOE Pro XL, or Snapsheets XL This support article explains how to start an Add-In independently from Excel. If you would like Quantum XL or SPC XL to start each time Excel starts, then please see these articles. – Auto-start Quantum XL– Auto-start SPC XL Instructions for Quantum

A commonly asked question is “Where do I find my serial number”? Your serial number (also called a CD Key) is very important. We, like most software companies, keep track of legal users by using this key. Method #1: If you still have the software installed, select “About” from the product’s menu. The serial number

Auto Start Quantum XL Add Quantum XL to Excel 2007, Excel 2010, Excel 2013, Excel 2016, and Office 365 so that it starts each and every time Excel does: 1. Click the Microsoft Office Button, and then click Excel Options. 2. Click the Add-ins tab; select Excel Add-ins from the Manage: list box and then