I'm good with spreadsheets but analyze: can I sell templates? Map template marketplaces: Etsy, Gumroad, own website. Calculate: creation time vs. price point vs. sales volume needed. Show me the template economics: create this, sell for this, need this many sales. Give me the template strategy: create these types, sell on these platforms. Include: whether spreadsheet templates sell, what they sell for, and which platform is best.