excel file to to get arp for a hiper v using the 10cm standoff

I'm not sure that I understand your question...

2 meter Rod w/ 10cm quick connect = 2.100 meters GRP to ARP

If you want to know the L1 phase Center to ARP, then use the NGS Absolute ANTEX file

TPSHIPER_V	  NONE P/N:1000686-01, Hiper V,Display to North NGS (  3) 12/08/29
   2.0	  -1.5	  93.2							 
   0.0  -0.3  -0.6  -0.8  -1.2  -1.6  -2.0  -2.3  -2.5  -2.6
  -2.7  -2.6  -2.6  -2.8  -2.9  -3.0  -3.0   0.0   0.0
   0.6	  -0.2	  97.1							 
   0.0  -0.6  -1.0  -1.3  -1.4  -1.5  -1.6  -1.7  -1.8  -1.9
  -2.0  -2.2  -2.2  -2.6  -3.2  -4.3  -5.8   0.0   0.0
RMS MM (1 SIGMA)  3  MEASUREMENTS
   0.4	   0.8	   0.5							 
   0.0   0.2   0.3   0.4   0.4   0.3   0.3   0.2   0.2   0.2
   0.3   0.2   0.3   0.4   0.5   0.5   0.6   0.0   0.0
   0.1	   0.4	   0.7							 
   0.0   0.2   0.4   0.4   0.4   0.3   0.2   0.2   0.1   0.1
   0.2   0.2   0.2   0.3   0.4   0.4   0.5   0.0   0.0

If you are asking about the measurement options (slant) to various points on the "head," then I dunno.

Loyal