Standardize US Phone Numbers with Multiple Format Options and Validation

Workflow Overview: This n8n workflow template takes a US phone number as input, validates it, and returns it in multiple standard formats, including handling extensions. It's designed to streamline the process of standardizing phone number data within your automations. How it Works: Input: Accepts a phone number string as input. This number can be in various common formats (e.g., (555) 123-4567, 555.123.4567, +15551234567, 5551234567x890). Formatting Removal: Strips all non-numeric characters to isolate the core number and any potential extension. Validation: Country Code Check: Verifies if the number starts with the US country code (+1 or 1) or assumes US if no country code is present and t

Help me set up the n8n workflow "Standardize US Phone Numbers with Multiple Format Options and Validation" (https://n8n.io/workflows/3812). It uses: . Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.