Plain text files featuring a .txt extension are inherently safe to use, create, store, and transfer because they contain nothing more than unformatted alphanumeric characters and basic punctuation symbols. Unlike complex document types or executable files, a standard text file cannot contain macros, embedded binary codes, or hidden software scripts capable of executing automatically on your system. As long as the file originates from a trusted source and you are opening it with a standard, reputable text editor, a TXT file poses virtually zero risk of computer infection. However, users should always remain cautious of misleading file extensions where malicious actors disguise executable programs with deceptive double names ending in text formats.