Download a file into iPad Air 4 using Files?
How to download a file from my email into iPad Air 4?
iPad Air, iPadOS 14
Question marked as
Top-ranking reply
Assuming that the file that you wish to save is an email attachment, a long-touch (touch-and-hold) on the attachment icon will reveal a pop-up Action Menu. Depending upon the attachment file-type, the presented list of actions will reflect the installed Apps and available actions - but will typically include Save to Files, or Share.
Save to Files should be self-explanatory; you can navigate to the path in which you wish to save your file.
Tapping Share opens the Share Sheet - this providing a number of options to share the attachment with devices, or to open the file in a suitable App.
More details can be found within the iPad User Guide. Here is a link to the relevant page of the online version of the Guide:
Work with email attachments on iPad - Apple Support
I hope this information and insight proves to be helpful to you.