CSV Datei mit Formeln laden oder importieren via JavaScript

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Der folgende Code zeigt, wie Sie eine CSV-Datei mit Formeln laden sowie importieren können. Sie können jede CSV-Datei verwenden. Zur Veranschaulichung verwenden wir die einfachen CSV, die diese Daten enthält. Wie Sie sehen, enthält sie eine Formel.

<!DOCTYPE html>
<html>
    <head>
        <title>Load CSV with Formulas and Save as XLSX</title>
    </head>
    <body>
        <h1>Load CSV with Formulas and Save as XLSX</h1>
        <input type="file" id="fileInput" accept=".csv" />
        <button id="convertToXlsx">Convert to XLSX</button>
        <a id="downloadLink" style="display: none;">Download XLSX</a>
        <div id="result"></div>

        <script src="aspose.cells.js.min.js"></script>
        <script type="text/javascript">
            const { Workbook, TxtLoadOptions, SaveFormat } = AsposeCells;

            AsposeCells.onReady().then(() => {
                console.log("Aspose.Cells initialized");
            });

            document.getElementById('convertToXlsx').addEventListener('click', async () => {
                const fileInput = document.getElementById('fileInput');
                if (!fileInput.files.length) {
                    document.getElementById('result').innerHTML = '<p style="color: red;">Please select a CSV file.</p>';
                    return;
                }

                const file = fileInput.files[0];
                const arrayBuffer = await file.arrayBuffer();

                const loadOptions = new TxtLoadOptions();
                loadOptions.hasFormula = true;

                const workbook = new Workbook(new Uint8Array(arrayBuffer), loadOptions);

                const outputData = workbook.save(SaveFormat.Xlsx);
                const blob = new Blob([outputData], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
                const downloadLink = document.getElementById('downloadLink');
                downloadLink.href = URL.createObjectURL(blob);
                downloadLink.download = file.name.replace(/\.csv$/i, '.xlsx');
                downloadLink.style.display = 'block';
                downloadLink.textContent = 'Download XLSX File';

                document.getElementById('result').innerHTML = '<p style="color: green;">Conversion completed! Click the download link to get the XLSX file.</p>';
            });
        </script>
    </body>
</html>
<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells CSV Load Example</title>
    </head>
    <body>
        <h1>Load CSV with Formulas and Save as XLSX</h1>
        <input type="file" id="fileInput" accept=".csv" />
        <button id="runExample">Run Example</button>
        <a id="downloadLink" style="display: none;">Download Result</a>
        <div id="result"></div>
    </body>

    <script src="aspose.cells.js.min.js"></script>
    <script type="text/javascript">
        const { Workbook, SaveFormat, TxtLoadOptions, Utils } = AsposeCells;

        AsposeCells.onReady({
            license: "/lic/aspose.cells.enc",
            fontPath: "/fonts/",
            fontList: [
                "arial.ttf",
                "NotoSansSC-Regular.ttf"
            ]
        }).then(() => {
            console.log("Aspose.Cells initialized");
        });

        document.getElementById('runExample').addEventListener('click', async () => {
            const fileInput = document.getElementById('fileInput');
            if (!fileInput.files.length) {
                document.getElementById('result').innerHTML = '<p style="color: red;">Please select a CSV file.</p>';
                return;
            }

            const file = fileInput.files[0];
            const arrayBuffer = await file.arrayBuffer();
            const bytes = new Uint8Array(arrayBuffer);

            // TxtLoadOptions configuration
            const opts = new TxtLoadOptions();
            opts.separator = ',';
            opts.hasFormula = true;

            // Load your CSV file with formulas in a Workbook object
            const workbook = new Workbook(bytes, opts);

            // You can also import your CSV file like this
            // The code below is importing CSV file starting from cell D4 (rowIndex=3, colIndex=3)
            const worksheet = workbook.worksheets.get(0);
            worksheet.cells.importCSV(bytes, opts, 3, 3);

            // Save your workbook in Xlsx format
            const outputData = workbook.save(SaveFormat.Xlsx);
            const blob = new Blob([outputData]);
            const downloadLink = document.getElementById('downloadLink');
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'output_out.xlsx';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Excel File';

            document.getElementById('result').innerHTML = '<p style="color: green;">Operation completed successfully! Click the download link to get the converted file.</p>';
        });
    </script>
</html>

Der Code lädt zuerst die CSV-Datei, importiert sie erneut bei Zelle D4. Schließlich speichert er das Arbeitsbuch im XLSX-Format. Die Ausgabedatei XLSX sieht folgendermaßen aus. Wie du siehst, enthalten die Zellen C3 und F4 Formeln und deren Ergebnis ist 800.

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