arjansh commented on a change in pull request #230: dev/add datatypes to excel 
columns
URL: https://github.com/apache/metamodel/pull/230#discussion_r328536468
 
 

 ##########
 File path: 
excel/src/main/java/org/apache/metamodel/excel/DefaultSpreadsheetReaderDelegate.java
 ##########
 @@ -167,50 +166,114 @@ private MutableTable createTable(final Workbook wb, 
final Sheet sheet) {
                     break;
                 }
             }
-
             if (hasColumns) {
-                createColumns(table, wb, row);
+                createColumns(table, wb, row, columnTypes);
             }
         }
-
         return table;
     }
 
+    private void setColumnType(Iterator<Row> data, int rowLength, ColumnType[] 
columnTypes) {
+        while (data.hasNext()) {
+            Row row = data.next();
+            for (int index = 0; index < rowLength; index++) {
+                if (row.getLastCellNum() == 0) {
+                    continue;
+                }
+                if (row.getCell(index) == null) {
+                    columnTypes = checkColumnType(ColumnType.STRING, 
columnTypes, index);
+                } else {
+                    CellType cellType = row.getCell(index).getCellType();
+                    if (cellType.getCode() != 0 && cellType.getCode() <= 2) {
 
 Review comment:
   The `getCode` method is deprecated. Please check against the enum value 
instead (or use a switch statement).

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