> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://zztakeoff.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Formula Library Lists

${youtube}[Formula Library Lists](uzDujQ-THYo)Here is a great video for our Advanced zzTakeoff users. watch this and learn how to reuse standard and custom formulas in zzTakeoff!