I can't choose files to back up

General Topics
1

With Kopia-UI I can select only the folders in the choice of items to save. I can’t choose files. It’s normal ?

2

Yes, that’s actually by design. In Kopia you define sources and those only anchor to folders. There are other ways, but those depend on you host OS and code/script skills.

3

Yes, there’s way. Exclude everything and then include whatever you want.

#exclude all
*
!**/
#include filters
!/file-i-want-to-include.exe
!/folder-i-want-to-include/**
!*.file-extension-i-want-to-include

This from Windows. Path are relative. Also, even in the Windows, filters are case sensitive. Also, also this way of filtering has its own quirks, like producing empty non-include folders.