Hey, not to be rude or anything, but how do I know this is not Malware?

[TemmyC-109]

Hey, not to be rude or anything, but how do I know this is not Malware? Just so you know, I don't mean to be rude or anything, it's just that my antivirus said something abt this and scince this is an executable file, I feel kinda scared or unsettled. Once again, I don't mean to be rude, I just would like confirmation this is not malware, and why my antivirus is flagging it. Thanks you, have a nice day.

[tidusfate1234]

its open source

[TemmyC-109]

its open source

How does that make it not malware?

[corsonostra13-source]

you can check the code to make sure it's not a malware