Can I exclude some files from git-lfs?

I was looking for the same. I am using git version 2.26.2 and rkedge's answer did not work for me. I found this thread and ended up using:

*.dat         filter=lfs diff=lfs merge=lfs -text
excluded.dat  !filter !diff !merge text 

For files already commited, I had to untrack and re-commit them after modifying .gitattributes.

.gitattributes works similarly to .gitignore in terms of precedence.

*               filter=lfs diff=lfs merge=lfs -text
.gitignore      filter= diff= merge= text
.gitattributes  filter= diff= merge= text

This will unset the filter, diff, merge for those files, and lfs won't track them.