If you are certain that “xfadsk2016x64” is a legitimate internal filename from a trusted source (e.g., a company-specific tool), please provide more context (software name, developer, original download location) so I can give a precise update guide.

Otherwise, I strongly advise against using or updating files from unofficial keygen/patch groups.

If the goal is to restore functionality to a 2016 suite via this update, the following operational state is assumed:

If you cannot afford a subscription, consider switching to open-source alternatives that are completely free and legal:

The filename breaks down as follows:

This tool is a Keygen (Key Generator). It creates fraudulent license keys to activate software without payment.