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I replaced Excel with a self-hosted, open-source alternative

Microsoft Excel is practically synonymous with spreadsheets, but the cost, along with being trapped in Microsoft's ecosystem, ...
GitHub

EasyQuickImport — Import transactions, invoices and bills into QuickBooks Desktop from Excel or CSV

EasyQuickImport is a tool that helps you import invoices, bills, transactions, customers and vendors into QuickBooks Desktop in multiple currencies in bulk. Add a company file in Users, define ...