Export Filename Suggestions

@madtownlems you can (with 3.5.1) change the filename of the ZIP file with the following filter:

add_filter( 'ss_zip_filename', function( $zip_filename, $archive_dir, $options ) {
    // Get site name and turn it into a nice dash-separated label while preserving case
    $site_name = get_bloginfo( 'name' );
    if ( ! $site_name ) {
        $site_name = 'Site';
    }

    // Replace whitespace/underscores with dashes
    $site_name = preg_replace( '/[\s_]+/', '-', $site_name );
    // Remove anything that isn't a letter, number, or dash
    $site_name = preg_replace( '/[^A-Za-z0-9\-]/', '', $site_name );
    // Collapse multiple dashes
    $site_name = preg_replace( '/-+/', '-', $site_name );
    // Trim leading/trailing dashes
    $site_name = trim( $site_name, '-' );

    // Multisite-aware blog/site ID (on single site this is typically 1)
    $blog_id = function_exists( 'get_current_blog_id' ) ? (int) get_current_blog_id() : 1;

    // Use WordPress timezone for date/time
    $ts   = current_time( 'timestamp' );
    $date = date_i18n( 'Y-m-d', $ts );

    // Build the filename
    $zip_filename = sprintf(
        'simply-static-%s-ID(%d)-%s-(%d).zip',
        $site_name,
        $blog_id,
        $date,
        $ts
    );

    return $zip_filename;
}, 10, 3 );

@madtownlems my bad, there is a bug in how we construct the path in the previous code snippet – here is updated (working) one:

add_filter( 'ss_zip_filename', function( $zip_filename, $archive_dir, $options ) {
	// Get site name
	$site_name = get_bloginfo( 'name' );
	if ( ! $site_name ) {
		$site_name = 'Site';
	}

	// Transliterate accents and create a URL-safe slug with dashes
	// This preserves ASCII letters/numbers and replaces spaces with dashes
	$site_name = remove_accents( $site_name );
	$site_name = sanitize_title_with_dashes( $site_name ); // lower-case, dash-separated

	// Fallback if it ends up empty (e.g., only symbols/emojis)
	if ( '' === $site_name ) {
		$site_name = 'site';
	}

	// Multisite-aware blog/site ID (on single site this is typically 1)
	$blog_id = function_exists( 'get_current_blog_id' ) ? (int) get_current_blog_id() : 1;

	// Use WordPress timezone for date/time
	$ts   = current_time( 'timestamp' );
	$date = date_i18n( 'Y-m-d', $ts );

	// Build a safe basename (no parentheses)
	$basename = sprintf(
		'simply-static-%s-%d-%s-%d.zip',
		$site_name,
		$blog_id,
		$date,
		$ts
	);

	// Return the full path inside the provided archive directory
	$zip_filename = trailingslashit( wp_normalize_path( $archive_dir ) ) . $basename;

	return $zip_filename;
}, 10, 3 );