F[ile filespec Loads a package that is saved in the file system as a .dtsx file. The filespec argument specifies the path ...

F[ile] filespec  Loads a package that is saved in the file system as a .dtsx file. The filespec  argument specifies the path and file name of the package. You can specify the  path as either a Universal Naming Convention (UNC) path or local path.  If you use the File option in conjunction with any of the following options,  dtexec fails:  o DTS  o SQL  o User  o Password  o Server