Другая интерпретация реестра

src/Excel/Document.php

@@ -92,7 +92,7 @@ class Document {
         $this->createStyles($doc);
         
         foreach ($this->table as $table) {
-            if ($table instanceof Excel_Table) {
+            if ($table instanceof Table) {
                 $table->createTable($doc);
             } else {
                 $table_data = call_user_func($table);

src/Excel/Table.php

@@ -4,7 +4,9 @@
  * Клетка таблицы 
  */
 namespace ctiso\Excel;
-use XMLWriter;
+use XMLWriter,
+    ctiso\Excel\DateTime as Excel_DateTime,
+    ctiso\Excel\Number as Excel_Number;
 
 class TableCell 
 {