SAP automation (set cell value )

Hi team ,
i am working with SAP automation and i want to add the data into a data items and i tried using set cell value and unable to find the column ID from Elements
the following ID is one of the table elments
wnd[0]/usr/ssubITEMS:SAPLFSKB:0100/tblSAPLFSKBTABLE/ctxtACGL_ITEM-MWSKZ[17,0]

can any help me to find the column ID