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Aspose creates massive Emf file

Aspose.Cells Product Family
#1

Hi,

Running the following code:

        var book = new Workbook("test.xlsx");
        Worksheet sheet = book.Worksheets[1];
        var options = new ImageOrPrintOptions
        {
            ImageFormat = ImageFormat.Emf,
            OnePagePerSheet = true,
            
        };
        new SheetRender(sheet, options).ToImage(0, "apose.emf");

Produces an Emf file that is 46MB!
Doing the same using Excel (copy as Picture) creates a 1MB file.

This is an exaggerated example but I have noticed similar size differences on more reasonable sheets.

Test.zip (146.4 KB)

#2

@ServerSide527,

Thanks for the template file and sample code.

After an initial test, I observed the issue as you mentioned by using your sample code with your template file. I found that Aspose.Cells creates big EMF file when rendering Sheet to image file. The output EMF file’s size is 46MB which more than expected. I guess the size might be due to “OnePagePerSheet” attribute which sets the big sheet (having 27 pages) into one in your code.

I have logged a ticket with an id “CELLSNET-45512” for your issue. We will look into it soon.

Once we have an update on it, we will let you know here.

Thank you.

#3

@ServerSide527,

Please try our latest fix/version: Aspose.Cells for .NET v17.7.2:

The generated EMF file size is reduced from over 40M to 8M or so in this fix.

Let us know your feedback.

Thank you.

#4

The issues you have found earlier (filed as CELLSNET-45512) have been fixed in latest version of Aspose.Cells for .NET (Download | NuGet).