Dong Qian

@ishantiw @guyonroche I follow the docs but add images are not working ``` let workbook = new Excel.Workbook() const imageId1 = workbook.addImage({ filename: './Picture1.png', extension: 'png', }); worksheet.addBackgroundImage(imageId1); ``` error:...

@ishantiw I think the issue is that i'm using buffer to download the excel file. Everything is working before add images. It is browser, can't see any errors ``` this.workbook.xlsx.writeBuffer().then(data...