I clicked on an attachment of a scam email by mistake and the file was downloaded to the download folder. I did not open it, but I feel that this was probably enough to infect my laptop. The format was
filename.z. the content was about an invoice that I was actually waiting for. So I quickly clicked on it without much thought. Then I read the mail which was spam.
I am using MacBook Pro 2017 running 10.14.6. I have never installed any anti-virus or anti-malware software.
Are there any recommended steps I should take? I deleted the file from the download file and permanently from trash. But other than that I do not know what the best course of action is.