How do you get alerts from Excel without using a BI tool?

If your KPIs live in Excel or Google Sheets, how do you get automatic alerts?

Right now most options are:

• Manual checking

• Complex BI setup

• Writing scripts

• Zapier automations

I’m exploring a simpler way to:

• Upload a spreadsheet

• Set 3-tier thresholds (Warning / Critical / Emergency)

• Get alerts when numbers cross limits

Before I launch — what would you need to see for this to be useful?