<head>
<meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0">

I suppose one of your PHP file fetches it using a code like this

<head>
<meta charset=<?php bloginfo('charset'); ?>" />

In my old theme, the developer had suggest a tweak so that instead of fetching this chartset info from SQL data everytime it’d simply write it manually i.e.

<head>
<meta charset="UTF-8">

My question:
Where is such file located in x-theme installation
How do I accomplish it?

PS:
I am forced to such minor tweaks because stupid webhosting company (=godaddy) is not increasing my memory limit despite behind on the highest plan on managed wordpress, and I lack the expertise to run a VPS on my own.
Hence trying to get maximum “mileage” with such tom-foolery.

Thanks for writing in!

To achieve this, create file _header.php in wp-content/themes/{CHILD THEME DIRECTORY}/framework/views/global
and copy the code below into that file.

<?php

// =============================================================================
// VIEWS/GLOBAL/_HEADER.PHP
// -----------------------------------------------------------------------------
// Declares the DOCTYPE for the site and include the <head>.
// =============================================================================

?>

<!DOCTYPE html>
<!--[if IE 9]><html class="no-js ie9" <?php language_attributes(); ?>><![endif]-->
<!--[if gt IE 9]><!--><html class="no-js" <?php language_attributes(); ?>><!--<![endif]-->

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title><?php wp_title(''); ?></title>
  <link rel="profile" href="http://gmpg.org/xfn/11">
  <link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>">
  <?php wp_head(); ?>
</head>

<body <?php body_class(); ?>>

  <?php do_action( 'x_before_site_begin' ); ?>

  <div id="top" class="site">

  <?php do_action( 'x_after_site_begin' ); ?>

Hope that helps.

That line of code is already there by default in the theme.

Thanks