LABEL Code in SAP-Scripts

Hi,

Can somebody explain me the below coding.Or if possible please provide me some useful links to understand this code.

/E LABEL_DATA

/: NEW-PAGE

/ ^XA

/ ^XFB:UPSGR.ZPL

/ ^FN999FD&C_TAG_COUNTOF&^FS

/ ^FN998FD&C_TAG_HU&^FS

/ ^FN997FD&C_TAG_PO&^FS

/ ^FN996FD&C_TAG_SHIP&^FS

/ ^FN995FD&C_TAG_TELEPHONE&^FS

/ ^FN994FD&C_TAG_TO&^FS

/ ^FN993FD&C_TAG_UPS_BILLINS&^FS

/ ^FN992FD&C_TAG_UPS_TRACK&^FS

/ ^FN991FD&G_CUST_PONO&^FS

/ ^FN967FD&G_WT_UNIT_CHAR&^FS

/ ^FN966FD&LVBPLA-NAME1_WE&^FS

/ ^FN965FD&LVBPLA-NAME2_WE&^FS

/ ^FN964FD&LVBPLA-NAME3_WE&^FS

/ ^FN963FD&LVBPLA-STRAS_WE&^FS

/ ^FN962FD&LVBPLK-EXIDV&^FS

/ ^PQ1,0,1,N

/ ^XZ

/ ^FX End of job

Thanking in advance,

Sudip.