Remove .html from category or product URL for Magento

Remove the .html extension from all Category URL & Product URL Steps Below:

Step 1: Go to System > Config > Catalog

Step 2: From ‘Search Engine Optimizations’ tab delete “.html” from ‘Product URL Suffix’ and ‘Category URL Suffix’

Step 3: Save config.

Step 4: Go to System > Index Management and Reindex All data

Step 5:  Clear your caches.