WebAssembly create and download pdf and xlsx files

[Weimars]

Hello, I want to export the content of a tablewidget to PDF or Excel and if it is possible to open it or download it.

I clarify that it is an application that will run in the web browser

[Weimars]

I was able to download the file in the following way, the backend that I have made in nestjs
generates the pdf file, I consume it from the front with qnetworkaccesmanager
and finally QFileDialog::saveFileContent(reply->readAll(), "peport.pdf" )

[monica345]

Exporting directly to PDF or Excel in a web browser is tricky due to security concerns. Here are some workarounds:
Client-side libraries (limited):
These libraries create a file-like representation of your table, but it might not be a perfect PDF or Excel. Users would need to save it manually.

Server-side generation (better):
Send your table data to your server. The server creates a real PDF/Excel file and sends it back for download. This offers more control and lets users directly download the file.

Third-party services (alternative):
These services convert your data to PDF/Excel in the cloud. You might need extra setup and potentially pay fees depending on the service.

The best option depends on your needs (security, complexity, file format). Let me know if you want to explore a specific solution further!