Reminder emails to clients who have missed their payment deadline. Do you find yourself rewriting them over and over, worrying if they sound rude or too harsh, only to realize 30 minutes have passed?

B. Excel - open excel/Energy_Excel_Lab.xlsx Read the README sheet first. Blue text on yellow = inputs you may change (e.g. Low_Max thresholds on Exp1_Logical, tariff slabs on Tariff); everything else ...

A small, local-first Windows spreadsheet starter built with .NET 10 WPF. It creates and edits .xlsx files on disk; it does not use Microsoft 365, sign-in, or a cloud service. See ROADMAP.md for the ...