I create an Excel file (.xlsx) using the Aspose.Cells library. But I'm not able to read the data (**retrieve rows**) using OleDb commands after that, **until I open the file and save it manually**. I'm running something as simple as this one:

```
new OleDbDataAdapter("select * from [Sheet1$]", conn); // etc...
```

Saving the file increases the size of the file as well. Please note that this happens **only with the .xlsx format**, for the old .xls everything works fine. I even tried the demo code that they have on their website, but the result is the same. Am I missing something?

Answer:

It seems you need to set the **ExportCellName** name property to **true** before saving to xlsx/xlsm format.

Please see the following sample.

```
//Create your workbook
Workbook workbook = new Workbook(filePath);
//Do your processing
//Save your workbook with export cell as true
OoxmlSaveOptions opts = new OoxmlSaveOptions();
opts.ExportCellName = true;
workbook.Save("output.xlsx", opts);
```

*Note: I am working as Developer Evangelist at Aspose*

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