It is legal for internal control, but you still need a fiscal invoice system (NF-e) for government reporting. Use the spreadsheet to prepare your tax data.
Premium spreadsheets often use VBA (Visual Basic for Applications) to auto-clear forms or print invoices. Download Simplo Automotivo Completo
A good mechanic fixes cars. A great mechanic also secures their tools – including software. Download wisely, scan thoroughly, and keep on fixing. It is legal for internal control, but you
If you answered to any of the above, do not proceed. Look for a safer source or consider a legal alternative. It is legal for internal control