A file name is the title of the file and its extension. When you rename a file, only the first part of the file name is changed. The file extension remains the same and usually is not to be changed.

We independently review everything we recommend. We may make money from the links on our site. Learn more› By Annie Chou Annie Chou is a writer covering home office, cameras, and games. She previously ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Usually, there are dedicated applications to view different types of files. However, if you are looking for a viewer that lets you view files of multiple types, you have come to the right article.

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Social Security numbers are nine-digit identifiers issued by the U.S. government to track ...