Chest pain is an umbrella term to describe any pain or discomfort in the chest area (image of chest area). It may feel dull or sharp, last a few seconds to a few hours, occur in one spot or spread across the width of the body and down the arms.
file name - (computer science) the name given to a computer file in order to distinguish it from other files; may contain an extension that indicates the type of file. computer file name, computer filename, filename.
A file type is a name given to a specific kind of file. For example, a Microsoft Word document and an Adobe Photoshop document are two different file types. While these file types are associated with individual applications, other file types, such as rich text RTF files and MP3 audio files are standard file types that can be opened by multiple programs.