Excel file not opening on every plateform with Node

Hello, I am currently struggling with opening the file generated by exceljs (v1.7.0) on MS Excel. I can open it but Excel (v16.21.1) says that some styling were not imported and no styling is taken into account. [EN Traduction] - “Sorry… We found a problem in the file, but we can try to recover as much content as we can. If you trust were the file came from, click yes”

That gives me this Excel that doesn’t take all my styling:

If I try to open the file in the browser with the extension Office Editing for Docs, Sheets & Slides it shows me this error:

BUT if I manually create a Google spreadsheet and import from there my generated file, the file is correctly displayed and opens correctly:

And kind of weird, but I generate the file, opens it on Google spreadsheet, download it from there on xlsx format and opens this downloaded file, the file opens correctly. So Google must be doing something I am not. As most of my users will be using Excel, it’s kind of annoying to push them to use Spreadsheet.

Here is the code that I use to generate and style my file

  const workbook = new Excel.Workbook()

  // Worksheet
  const worksheet = workbook.addWorksheet('Detailed capitalization table', {
    pageSetup: { paperSize: 9, orientation: 'landscape', },
  })

  worksheet.views = [
    { state: 'frozen', ySplit: 4, topLeftCell: 'A3', },
    {
      showGridLines: false,
    },
  ]

  // Construction of columns
  // Construction of frozen upper part
  // Put data into columns

And later I do

workbook.xlsx.writeFile('path/to/file.xlsx') // With path to file

I tried without any styling but even then it doesn’t work. Still errors when i try to open the file. Thanks for reading, if you have any lead that would be super helpful!

[Gildewarz777]

Hi, I’ve created a worksheet with nothing on it, but I still get the errors. Here is the code :

  const workbook = await new Excel.Workbook()
  const worksheet = await workbook.addWorksheet('Worksheet')
  workbook.xlsx.writeFile('path/to/file.xlsx') // With path to file

Here is the xml that results from the generated xlsx file:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">
<Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml"/>
<Override PartName="/xl/workbook.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml"/>
<Override PartName="/xl/worksheets/sheet1.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml"/>
<Override PartName="/xl/theme/theme1.xml" ContentType="application/vnd.openxmlformats-officedocument.theme+xml"/>
<Override PartName="/xl/styles.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml"/>
<Override PartName="/docProps/core.xml" ContentType="application/vnd.openxmlformats-package.core-properties+xml"/>
<Override PartName="/docProps/app.xml" ContentType="application/vnd.openxmlformats-officedocument.extended-properties+xml"/>
</Types>

And here is the xml when I import the xlsx on Google Spreadsheet and download it in xlsx from there:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">
<Default ContentType="application/xml" Extension="xml"/>
<Default ContentType="application/vnd.openxmlformats-package.relationships+xml" Extension="rels"/>
<Override ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml" PartName="/xl/worksheets/sheet1.xml"/>
<Override ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sharedStrings+xml" PartName="/xl/sharedStrings.xml"/>
<Override ContentType="application/vnd.openxmlformats-officedocument.drawing+xml" PartName="/xl/drawings/drawing1.xml"/>
<Override ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml" PartName="/xl/styles.xml"/>
<Override ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml" PartName="/xl/workbook.xml"/>
</Types>

As we can see this line is missing, and might be the cause of the problem:

<Default ContentType="application/xml" Extension="xml"/>

[flodan]

I could fix my problem. For all who stumble upon this issue, maybe the following will help:

• I had cells with text of a percentage in it (e.g. “50%”). Excel tried to parse them automatically which led to an error. I switched to insert them as a number (e.g. 0.5) and configured it to being displayed as a percentage (0%)
• I also had a table which I gave a name that had a space in it (e.g. “test table”). It seems that Excel does not allow that (when repairing the file, Excel replaces the space with an underscore)
• I also used the autoFilter feature on the table, which led to an error. I switched to enabling the filter buttons directly for each column of the table