Export the 'differences" to external document (txt or html)

Applications
1

Hello,
Is there a way to export (only) the differences of a compare to an external file?
I’m mostly using Meld invoked from NEMO (Linux).
Or is there a switch to show only the differences?

Meld v. 3.20.4 Linux Mint v21.3

2

Menu → Comparison → Format as Patch