I found this line of code in my web.config, and I cannot understand what does it exactly do for my website. What is the need of this in my web.config?
<rule name="RewriteHTML">
          <match url="(.*)" />
            <conditions logicalGrouping="MatchAll">                     
            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />                     
            <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />                 
            </conditions>                 <action type="Rewrite" url="{R:1}.html" />             
</rule> 
 
     
    