.htaccess for wampserver 3.0.6 not working

Apparently i keep getting this error on my Apache error log file whenever i run my website through the local-host.

[Fri Dec 22 16:24:16.365732 2017] [mpm_winnt:notice] [pid 3828:tid 520] AH00422: Parent: Received shutdown signal -- Shutting down the server.

[Fri Dec 22 16:24:18.396919 2017] [mpm_winnt:notice] [pid 7532:tid 472] AH00364: Child: All worker threads have exited.

[Fri Dec 22 16:24:18.521924 2017] [mpm_winnt:notice] [pid 3828:tid 520] AH00430: Parent: Child process 7532 exited successfully.

[Fri Dec 22 16:24:23.303180 2017] [mpm_winnt:notice] [pid 7848:tid 544] AH00455: Apache/2.4.27 (Win64) PHP/5.6.31 configured -- resuming normal operations

[Fri Dec 22 16:24:23.303180 2017] [mpm_winnt:notice] [pid 7848:tid 544] AH00456: Apache Lounge VC15 Server built: Jul 7 2017 12:46:00

[Fri Dec 22 16:24:23.303180 2017] [core:notice] [pid 7848:tid 544] AH00094: Command line: 'c:\wamp64\bin\apache\apache2.4.27\bin\httpd.exe -d C:/wamp64/bin/apache/apache2.4.27'

[Fri Dec 22 16:24:23.318785 2017] [mpm_winnt:notice] [pid 7848:tid 544] AH00418: Parent: Created child process 9120

[Fri Dec 22 16:24:25.193783 2017] [mpm_winnt:notice] [pid 9120:tid 472] AH00354: Child: Starting 64 worker threads.

I have put the .htaccess file in the root directory of my website files(not in the root directory of Wampserver).

RewriteEngine on

RewriteCond %{REQUEST_FILENAME} !-d

RewriteCond %{REQUEST_FILENAME}\.php -f

RewriteRule ^(.*)$ $1.php

Its not showing me the output i desire.I turned on the re-write mode in Apache httpd.conf file still no success. What am i doing wrong? Please i need your help if anybody can help me thanks.