Can VSCode linter only analyze the open file not all files in folder?

I have dozens of Julia scripts in a folder opened in VSCode. After some private package changes, many of them are broken and are flagged by VSCode as having problems in the Explorer (the left pane that lists files). Can I tell VSCode to ignore them and only analyze the files that I have actually opened for editing? Other than the minor visual annoyance, I don’t want VSCode to spend more CPU time in the background performing such tasks.