Squeezing Chest Pain- Causes and Other Symptoms. Chest pain is usually a concern for most people since the vital organs, specifically the heart and lungs, lie in this area. Problems with these organs can lead to death and sometimes this can occur within minutes. However, chest pain is not always a sign of a serious heart or lung problem.
File Manager (Windows) File Manager is a file manager program bundled with releases of Microsoft Windows between 1990 and 1999. It was a single-instance graphical interface, replacing the command-line interface of MS-DOS, to manage files (copy, move, open, delete, search, etc.).
A file extension is the set of three or four characters at the end of a filename; in this case, .dat. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically.