Please i need help. my website [uniprojectmaterials.com][1]

[1]: https://uniprojectmaterials.com is downloading webiste instead of opening browswer. i hosted it on [godaddy.com][1]

[1]: https://godaddy.com i have chat them severally they keep telling me the problem is from my .htacess file. i dont have knowledge on .htaccess. please can someone help me please