[Chartjs]-Import data from Excel and use in Chart.js

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The easiest way is to use chartjs-plugin-datasource, which is leveraging SheetJS (js-xlsx).

Save the following excel file as mydata.xlsx in the same directory as your html file.

+--------------+-------+-------+-------+-------+-------+-------+
|              | Dia 1 | Dia 2 | Dia 3 | Dia 4 | Dia 5 | Dia 6 |
+--------------+-------+-------+-------+-------+-------+-------+
| OEE Real (%) |    60 |    30 |    65 |    59 |    58 |    49 |
+--------------+-------+-------+-------+-------+-------+-------+
| OEE Meta (%) |    30 |    45 |    62 |    47 |    55 |    11 |
+--------------+-------+-------+-------+-------+-------+-------+

Then, specify it in your script.

<script src="https://cdn.jsdelivr.net/npm/chart.js@2.8.0"></script>
<script src="https://cdn.jsdelivr.net/npm/xlsx@0.14.3/dist/xlsx.full.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datasource@0.1.0"></script>

<div>
    <canvas class="line-chart"></canvas>
</div>

<script>

var ctx = document.getElementsByClassName("line-chart");

//Type, data, options

var chartGraph = new Chart (ctx, {
    type: 'line',
    data: {
        datasets: [{
            borderWidth: 6,
            borderColor: 'rgba(146, 242, 42, 0.85)',
            fill: false
        }, {
            borderWidth: 6,
            borderColor: 'rgba(207, 0, 15, 0.85)',
            fill: false
        }
    ]},
    plugins: [ChartDataSource],
    options: {
        title: {
            display: true,
            fontSize: 20,
            text: 'ENCARTUCHAMENTO 05'
        },
        scales: {
            yAxes: [{
                ticks: {
                    max: 100,
                    min: 0,
                }
            }]
        },
        plugins: {
            datasource: {
                url: 'mydata.xlsx'
            }
        }
    }
});

</script>

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