Running the following command (as an example) :
gci C:\Windows\System32 -Filter win*.exe -Depth 1 -ErrorAction SilentlyContinue | ft Name,Length -GroupBy Directory

Returns delimiting lines between the grouped-by object and the property headers on version 6.1.3 (and Desktop Edition 5.1.x as well) :

Directory: C:\Windows\System32

Name Length

WinBioDataModelOOBE.exe 60928
Windows.Media.BackgroundPlayback.exe 13312
Windows.WARP.JITService.exe 32768
WindowsActionDialog.exe 60928
WindowsUpdateElevatedInstaller.exe 47104
wininit.exe 388376
winload.exe 1468952
winlogon.exe 779776
winresume.exe 1179680
winrs.exe 50176
winrshost.exe 28672
WinSAT.exe 2800128
winver.exe 58880

Directory: C:\Windows\System32\Boot

Name Length

winload.exe 1468952
winresume.exe 1179680

Directory: C:\Windows\System32\oobe

Name Length

windeploy.exe 177664

Directory: C:\Windows\System32\wbem

Name Length

WinMgmt.exe 82432

While grouped-by object and property headers are stuck together on version 6.2.0 as delimiting lines have disappared :

Directory: C:\Windows\System32
Name Length

WinBioDataModelOOBE.exe 60928
Windows.Media.BackgroundPlayback.exe 13312
Windows.WARP.JITService.exe 32768
WindowsActionDialog.exe 60928
WindowsUpdateElevatedInstaller.exe 47104
wininit.exe 388376
winload.exe 1468952
winlogon.exe 779776
winresume.exe 1179680
winrs.exe 50176
winrshost.exe 28672
WinSAT.exe 2800128
winver.exe 58880

Directory: C:\Windows\System32\Boot
Name Length

winload.exe 1468952
winresume.exe 1179680

Directory: C:\Windows\System32\oobe
Name Length

windeploy.exe 177664

Directory: C:\Windows\System32\wbem
Name Length

WinMgmt.exe 82432