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?