All appsMaingage product · Italian e-invoices on Windows, free
Nanus Viewer
Open an Italian e-invoice with a double click.
The free Italian e-invoice viewer for Windows: it opens XML files, signed P7M files and ZIP archives, shows the invoice in a compact or official layout, prints it, saves it as PDF and opens its attachments. Everything stays on your computer, offered by Nanus.
Invoice no. 14212/10/2026
Total€1,220.00
PrintSave PDF
What it does
Built for everyday work.
XML, P7M and ZIP
Opens plain invoices, digitally signed ones and archives with several invoices.
Two views
Compact, like a real invoice, or the official layout with every field.
Print and PDF
A clean copy to print or send to your accountant, with attachments one click away.
Everything on your PC
Files are never sent over the network.
The next step
When you also want to issue invoices, there is Nanus.
Where it runs
Windows 10 and 11Free
Need software like this?
Tell us about the process you want to simplify: we’ll look at feasibility, timing and costs together, with no obligation.
Book a call →