@echo off
SETLOCAL ENABLEDELAYEDEXPANSION
for /f "tokens=*" %%f in ('dir /b *.zip') do (
	SET oldname=%%f
	echo %%~nf
  "C:\Program Files\7-Zip\7z.exe" e %%f "*.*"
	for /f "tokens=*" %%d in ('dir /b *.csv') do (
		SET newname=%%d
		echo %%~nd
		REN %%d=%%~nf.txt
	)
)