VBA code to validate formula cells and do condition check in closed workbooks

Dear experts!!

Goodmorning

I have list of workbooks stored in path. i want vba to do validate in column with formulas updates and conditional check in U:AA column.

i have updated formulas in column of U,V,W,X,Y,Z where need to validate with formula.
U = =IF(AND(H2="LABOR ONLY",AC2="RELEASED"),"",IF(AND(H2="LABOR ONLY",AC2="PENDING"),"",IF(S2="","",TODAY()-S2)))
V = =IFERROR(IF(H2="ZSP1",AD2,IF(H2="ZLAB",AE2,IF(H2="LABOR & PART",AD2,IF(AND(H2="LABOR ONLY",AA2=""),AE2,TODAY()-AA2))))," ")
W = =IFERROR(IF(AF2="",CLEAN(IF(TODAY()-S2>=30,"G >30 Days",IF(TODAY()-S2>20,"F 21-30 Days",IF(TODAY()-S2>15,"E 16-20 Days",IF(TODAY()-S2>10,"D 11-15 Days",IF(TODAY()-S2>=5,"C 6-10 Days",IF(TODAY()-S2>3,"B 3-5 Days","A 0-2 Days"))))))),CLEAN(IF(AF2>=30,"G >30 Days",IF(AF2>20,"F 21-30 Days",IF(AF2>15,"E 16-20 Days",IF(AF2>10,"D 11-15 Days",IF(AF2>5,"C 6-10 Days",IF(AF2>3,"B 3-5 Days","A 0-2 Days"))))))))," ")
X = =IFERROR(IF(AG2="","PND","TATA")," ")
Y = =IFERROR(IF(S2="","",CLEAN(IF(TODAY()-S2>=30,"G >30 Days",IF(TODAY()-S2>20,"F 21-30 Days",IF(TODAY()-S2>15,"E 16-20 Days",IF(TODAY()-S2>10,"D 11-15 Days",IF(TODAY()-S2>=5,"C 6-10 Days",IF(TODAY()-S2>3,"B 3-5 Days","A 0-2 Days"))))))))," ")
Z = =IF(OR(S2>=DATEVALUE("06/30/2015"),S2=0),G2,"999")

i want check those formulas are valid and whereever formula not filled OR keep as blank cell
those cell are highlighed as yellow.
condition check1 in column Z where the formula not contain with 06/30/2015 date those column need to fill by yellow color.
condition check2 whereever result GE100 in Z those column need to fill by red
condition check3 Column AA = #N/A and M >0.00 those column need to fill by yellow.
and i want run code from VBA_run file. i want give reference cell to Path(B3) and Date check (B2) of column Z:Z , then found & list out in D2 which are files found error from vbe running file.

please find the attachment