diff --git a/src/ext/spout/SpoutBuilder.php b/src/ext/spout/SpoutBuilder.php
index e45f1e9..1542d15 100644
--- a/src/ext/spout/SpoutBuilder.php
+++ b/src/ext/spout/SpoutBuilder.php
@@ -6,7 +6,6 @@ use nulib\file\tab\AbstractBuilder;
 use nulib\file\tab\TAbstractBuilder;
 use nulib\os\path;
 use nulib\php\func;
-use nulib\php\nur_func;
 use nulib\php\time\Date;
 use nulib\php\time\DateTime;
 use nulib\ref\ext\spout\ref_builder;
@@ -95,20 +94,23 @@ class SpoutBuilder extends AbstractBuilder {
     if (($rotation = $cell["rotation"] ?? null) !== null) $style->setTextRotation($rotation);
     if (($format = $cell["format"] ?? null) !== null) $style->setFormat($format);
     if (($border = $cell["border"] ?? null) !== null) {
-      if (is_string($border)) {
-        $parts = explode(" ", $border);
-        $border = [];
+      if (is_array($border)) $borderDefs = $border;
+      else $borderDefs = preg_split('/\s*,\s*/', trim(strval($border)));
+      $border = null;
+      foreach ($borderDefs as $borderDef) {
+        $parts = preg_split('/\s+/', $borderDef);
+        $borderDef = [];
         $styleAll = null;
         $widthAll = null;
         $colorAll = null;
         foreach ($parts as $part) {
           if ($part === "all") {
-            $border["left"] = [];
-            $border["top"] = [];
-            $border["right"] = [];
-            $border["bottom"] = [];
+            $borderDef["left"] = [];
+            $borderDef["top"] = [];
+            $borderDef["right"] = [];
+            $borderDef["bottom"] = [];
           } elseif (preg_match('/^(left|top|right|bottom)$/', $part)) {
-            $border[$part] = [];
+            $borderDef[$part] = [];
           } elseif (preg_match('/^(none|solid|dashed|dotted|double)$/', $part)) {
             $styleAll = $part;
           } elseif (preg_match('/^(thin|medium|thick)$/', $part)) {
@@ -117,18 +119,23 @@ class SpoutBuilder extends AbstractBuilder {
             $colorAll = $part;
           }
         }
-        foreach ($border as &$part) {
+        foreach ($borderDef as &$part) {
           if ($styleAll !== null) $part["style"] = $styleAll;
           if ($widthAll !== null) $part["width"] = $widthAll;
           if ($colorAll !== null) $part["color"] = $colorAll;
         }; unset($part);
+
+        $top = $borderDef["top"] ?? null;
+        $right = $borderDef["right"] ?? null;
+        $bottom = $borderDef["bottom"] ?? null;
+        $left = $borderDef["left"] ?? null;
+
+        self::add_border_part($border, "top", $top);
+        self::add_border_part($border, "right", $right);
+        self::add_border_part($border, "bottom", $bottom);
+        self::add_border_part($border, "left", $left);
       }
-      $parts = null;
-      self::add_border_part($parts, "top", $border["top"] ?? null);
-      self::add_border_part($parts, "right", $border["right"] ?? null);
-      self::add_border_part($parts, "bottom", $border["bottom"] ?? null);
-      self::add_border_part($parts, "left", $border["left"] ?? null);
-      if ($parts !== null) $style->setBorder(new Border(...$parts));
+      if ($border !== null) $style->setBorder(new Border(...$border));
     }
     if (($autofit = $cell["autofit"] ?? null) !== null) $style->setShouldShrinkToFit($autofit);
     return $style;
@@ -333,13 +340,8 @@ class SpoutBuilder extends AbstractBuilder {
       }
       if (array_key_exists("cook_func", $sheetParams)) {
         $cookFunc = $sheetParams["cook_func"] ?? null;
-        $cookCtx = $cookArgs = null;
-        if ($cookFunc !== null) {
-          nur_func::ensure_func($cookFunc, $this, $cookArgs);
-          $cookCtx = nur_func::_prepare($cookFunc);
-        }
-        $this->cookCtx = $cookCtx;
-        $this->cookArgs = $cookArgs;
+        if ($cookFunc !== null) $cookFunc = func::with($cookFunc)->bind($this);
+        $this->cookFunc = $cookFunc;
       }
     }
     return $this;