Some types of files will never be added to a project, although they may reside in a working folder. For example, suppose you are creating files with an application that makes an automatic backup (.bak) copy of each file every time you save the file. Although your working folder might contain several .bak files, you would have no reason to check them into (or out of ) the application. Therefore, you should exclude them from the project view.
Exclude lists can also be inherited from parent folders.
Use standard expressions (with * and ? wild cards) separated by commas, spaces, or semicolons. To include a comma, space or semicolon as part of the specification, enclose the specification in double quotes.
A trailing / character means that Not-in-View folders will be excluded. For example, bin/ would cause all Not-in-View folders named bin to be excluded from the folder tree.