Hosting server wont accpet htaccess, need to increase maximum file upload limit

[itpvision]

Hello

I need to increase the maximum upload file limit, I used .htacess:

 

php_value upload_max_filesize 20M

php_value post_max_size 20M

php_value max_execution_time 200

php_value max_input_time 200

 

Whenever I upload .htaccess to the hosting server, all the site fails, whenever I delete it, the site works fine, I need an alternative to set maximum file upload

 

Help appreciated

Many Thanks