Convert date column in excel to normal format (yyyy-mm-dd), current format is 41934

My date column shows numbers like 45123 instead of showing yyyy-mm-dd, how can i read this excel file and generate a json with a correct date format.

thats my function to read xlsx:

const xlsxtojson = (path, headers) => {
    const workbook = XLSX.readFile(path);
    let jsonData = [];
    jsonData = XLSX.utils.sheet_to_json(workbook.Sheets[workbook.SheetNames[0]], { header: headers, range: 1 });
    return jsonData;
}

[demon-zhonglin]

还可以试试在读文件(XLSX.read)的时候进行一些设置: XLSX.read(data, { type: 'binary', cellDates: true })

cellDates: 将日期存储为类型d(默认为n)(类型详情: https://github.com/SheetJS/sheetjs#data-types) 设置完后，重新读取文件时，你会发现此时值为 js 的 Date 对象

=================================== You can try this when reading files(XLSX.read): XLSX.read(data, { type: 'binary', cellDates: true })

cellDates: Store dates as type d (default is n) (Data Types: https://github.com/SheetJS/sheetjs#data-types)

You will find that the current value is a js Date object

[cooljeffro]

The format is the number of days since Jan 1, 1900. However, Excel incorrectly counts 1900 as a leap year.

To get the date using moment: moment('1900-01-01').add(45123 - 2, 'days').format('YYYY-MM-DD').

This will work for dates after 1900-02-28.