This should work:
@echo off
setlocal EnableDelayedExpansion
set "Count=1"
for /f "tokens=1,2,3,4,5,6,7 delims==: " %%A in (C:\File.txt) do (
set "%%A[!Count!]=%%C"
set "%%D[!Count!]=%%E"
set "%%F[!Count!]=%%G"
set /a "Count+=1"
)
:: Call other batch script here.
endlocal
Example Output:
COMPUTER[1]=PC
COMPUTER[2]=PC2
ADDRESS[1]=154.100.1.1
ADDRESS[2]=100.100.1.1
MASK[1]=255.255.254.0
MASK[2]=255.255.254.0