“Package should contain a content type part [M1.13]”

Question

I am attempting to write to an Excel file however I keep getting the error:

Exception in thread \"main\" org.apache.poi.POIXMLException: org.apache.po

Answer 1

The excel file which your application trying to access is not responding due to network issues or corrupted format causes this error. If it is due to network issue try to run application later (or) If file is corrupted, try to put new file and test your application. Good Luck.