I built an Excel toolkit to solve the product decision chaos e-commerce sellers face

I've been working on a project called Digital Seller Business OS.

The idea came from noticing that product research, cost calculations, profitability estimates, and opportunity comparisons are often scattered across multiple spreadsheets, calculators, and tools.

I wanted to see if I could bring those parts together into one structured Excel-based system.

So I built a toolkit designed to help e-commerce sellers:

• Evaluate potential products

• Calculate costs and profitability

• Compare different opportunities

• Organize product research and decision-making

• Reduce the amount of information scattered across different spreadsheets

My main goal wasn't simply to create another spreadsheet template. I wanted to build a practical “decision layer” that helps sellers structure their thinking before investing money into a product.

I'm still at the stage of learning and improving it, so I'd genuinely appreciate honest feedback from people who run e-commerce businesses or build tools for entrepreneurs.

What do you think is the biggest challenge when deciding whether a product is worth pursuing?

I'm particularly interested in feedback about whether this workflow actually solves a real problem and what features would make something like this more useful.