Hello. I'm an Aspose.Cells for .NET user who is currently evaluating the Java version for a separate project. I am trying to open one of my production files, but Aspose is throwing the following exception:
Exception in thread "main" java.io.IOException: It is not a valid excel2007 file.Invalid print quality.It must be greater than 0.
at com.aspose.cells.Workbook.open(Unknown Source)
The 2003 version of the same file opens fine in Java, and this particular 2007 file opens fine using Aspose.Cells for .NET.
After lots of trial and error, I determined that if I open the Page Setup dialog for a particular worksheet in the workbook, simply click OK, and save, I can use the file from that point forward. The file is also "fixed" if I remove all header and footer information using Excel 2007's "Prepare/Inspect" functionality.
However, these are not acceptable solutions for the use case that my team is planning to implement. Any thoughts here?