Frequently Asked Questions - FAQ
This collection of frequently asked questions (FAQ) provides brief answers to many common questions about Spider Financial and the NumXL Add-in. It also provides links to more detailed information available from this web site. Please check here for answers before posting a question to one of the forums or before sending email to the support e-mail addresses.
Modeling
SDK
Support
Sales
- W-9 Form
- VAT or DUNS Number
- NDAA (Section 889) Compliance
- Applying VAT to your order
- Sales Tax Exemption
- Site Licenses
Resellers
- Reseller's Responsibility
- Reseller Process
- Reseller Program in NumXL
- Product Shipping
- Payment Methods for Resellers
- NumXL on a Stored Media?
Online Store
Functions
- Nyquist frequency with DFT
- Cointegration in NumXL
- EWMA (Exponential Weighted Volatility) FAQ
- Interpreting Calculated EWMA Values
- Largest data set for DFT and IDFT?
- GARCH_CHECK phenomenon
Microsoft Excel
- Excel is not re-calculating when I hit F9 key!
- Microsoft Excel Active License
- Passing an array formula as an argument
- Find Excel Add-ins Manager
- NumXL with non-English Excel
- Excel installation is outdated
Licensing
- NumXL functionality in the 14-day trial
- Perpetual Premier Support
- Activation error for my 5th machine
- Finding NumXL License Manager
- I forgot my license key
- Deactivating/unlocking license key
Installation
- Installing NumXL in Windows 10
- Windows Installation is Outdated
- I can't upgrade to 1.65 (error during locality initialization)
- NumXL Free Trial
- NumXL on Mac
- Install NumXL on CITRIX Server
Beta Testing
General
- Supported Data-Set Size in NumXL
- NumXL Functions List
- Customer Reviews
- Submitting Feedback or Filing a Defect or Claim
- Using NumXL
- NumXL Updates