excel

From xlDynamic.com
File path, file and worksheet name:
=CELL(“filename”,A1)
File path only:
=LEFT(CELL(“filename”,A1),FIND(“[",CELL("filename",A1),1)-1)
File name only:
=MID(CELL("filename",A1),FIND("[",CELL("filename",A1),1)+1,
FIND("]“,CELL(“filename”,A1),1)-FIND(“[",CELL("filename",A1),1)-1)
The sheet name:
=MID(CELL("Filename",A1),FIND("]“,CELL(“Filename”,A1))+1,255)
Restriction: this technique only works for workbooks that have been saved at least once.