More details on uploading background data file for Shiny App on

Hello, I am planning to host a shiny app, and I have a budget up to Standard plan. I will need several database loaded together with the functions, to perform calculations depending on the user inputs.

The FAQ is old, and the User guide does not specify many details about uploading data.

It seems that I can upload only CSV or Rdata files up to 100MB according to, while according to User guide Chapter 3 Application, I can upload "bundles" up to 5GB. So I can upload multiple 100MB CSV files up to 5GB? I cannot upload any other file format, like a raster file, can I?

Thanks, I am exploring if shinyappsio is the best solution for my requirements.

Any comment or suggestion?