# ProformaWorks > Lender-grade acquisition and underwriting models for real businesses. Excel + Google Sheets, every formula machine-verified. ## Pages - [Contact](https://proformaworks.com/contact): questions about the models, licensing and refunds - [FAQ](https://proformaworks.com/faq): what the models include, compatibility and updates ## About - Languages: English - Topics: business acquisition underwriting, SBA 7(a) financing, DSCR, seller discretionary earnings, financial modelling - Format: Excel workbooks (.xlsx), Google Sheets compatible, with PDF user guides - Disclaimer: educational planning tools, not financial, investment or lending advice ## Licence Content may be cited with attribution. Commercial use for model training requires written permission. Contact: no-reply@proformaworks.com