防止htaccess影响ajax请求

I'm trying to modify my htaccess request, it currently loads all the files that are php, but removes the .php extension. However I noticed that this affects my ajax requests, as I cannot get any POST data from them. What do I add to my htaccess to prevent a specific php(data.php) from not being affected by the extension removal of the htaccess?I'm trying to modify my htaccess request, it cu