Öppna filer med olika format med JavaScript via C++

Öppna filer med olika format

Aspose.Cells gör det möjligt för utvecklare att öppna kalkylbladsfiler med olika format som SpreadsheetML, kommaseparerade värden (CSV), Tab Delimited eller Tab-separerade värden (TSV), ODS-filer. För att öppna sådana filer kan utvecklare använda samma metod som de använder för att öppna filer för olika versioner av Microsoft Excel.

Öppning av SpreadsheetML Filer

SpreadsheetML-filer är XML-representationer av kalkblad inklusive all information om det, såsom formatering, formler, etc. Sedan Microsoft Excel XP har ett XML-exportalternativ som exporterar dina kalkblad till SpreadsheetML-filer.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>Open SpreadsheetML (Book3.xml)</h1>
        <input type="file" id="fileInput" accept=".xml,.xls,.xlsx,.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, LoadOptions, LoadFormat, 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 an SpreadsheetML (.xml) file.</p>';
                return;
            }

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

            // Instantiate LoadOptions specified by the LoadFormat.
            const loadOptions = new LoadOptions(LoadFormat.SpreadsheetML);

            // Create a Workbook object and open the file from the uploaded data
            const workbook = new Workbook(new Uint8Array(arrayBuffer), loadOptions);

            document.getElementById('result').innerHTML = '<p style="color: green;">SpreadSheetML file opened successfully!</p>';
            console.log("SpreadSheetML file opened successfully!");
        });
    </script>
</html>

Öppning av HTML filer

Aspose.Cells tillåter dig att öppna en HTML-fil i ett Workbook-objekt. HTML-filen bör vara Microsoft Excel-orienterad, det vill säga, MS-Excel ska kunna öppna den.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>Convert HTML to XLSX Example</h1>
        <input type="file" id="fileInput" accept=".html,.htm" />
        <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, HtmlLoadOptions, LoadFormat } = 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');
            const resultEl = document.getElementById('result');
            if (!fileInput.files.length) {
                resultEl.innerHTML = '<p style="color: red;">Please select an HTML file.</p>';
                return;
            }

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

            // Instantiate LoadOptions specified by the LoadFormat.
            const loadOptions = new HtmlLoadOptions(LoadFormat.Html);

            // Create a Workbook object and opening the file from the uploaded file data
            const workbook = new Workbook(new Uint8Array(arrayBuffer), loadOptions);

            // Save the XLSX file
            const outputData = workbook.save(SaveFormat.Xlsx);
            const blob = new Blob([outputData]);
            const downloadLink = document.getElementById('downloadLink');
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'output.xlsx';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Converted XLSX File';

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

Öppning av CSV-filer

Komma-separerade värden (CSV) filer innehåller poster där värdena separeras med kommatecken. Data lagras som en tabell där varje kolumn är separerad av kommatecknet och citerad med dubbla citattecken. Om ett fält innehåller ett dubbelt citattecken, är det undkommet med ett par dubbla citattecken. Du kan också använda Microsoft Excel för att exportera kalkylbladdata till CSV.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells CSV Open Example</title>
    </head>
    <body>
        <h1>Aspose.Cells CSV Open Example</h1>
        <input type="file" id="fileInput" accept=".csv" />
        <button id="runExample">Open CSV</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, LoadOptions, LoadFormat } = 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();

            // Instantiate LoadOptions specified by the LoadFormat.
            const loadOptions4 = new LoadOptions(LoadFormat.Csv);

            // Create a Workbook object and open the file from the uploaded data
            const wbCSV = new Workbook(new Uint8Array(arrayBuffer), loadOptions4);

            document.getElementById('result').innerHTML = '<p style="color: green;">CSV file opened successfully!</p>';
        });
    </script>
</html>

Öppna CSV-filer och ersätt ogiltiga tecken

När en CSV-fil med specialtecken öppnas i Excel, ersätts tecknen automatiskt. Samma gäller för Aspose.Cells API som demonstreras i kodexemplet nedan.

<!DOCTYPE html>
<html>
    <head>
        <title>Load CSV with TxtLoadOptions Example</title>
    </head>
    <body>
        <h1>Load CSV with TxtLoadOptions Example</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, TxtLoadOptions, LoadFilter, LoadDataFilterOptions, 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 loadOptions = new TxtLoadOptions();
                loadOptions.separator = ';';
                loadOptions.loadFilter = new LoadFilter(LoadDataFilterOptions.CellData);
                loadOptions.checkExcelRestriction = false;
                loadOptions.convertNumericData = false;
                loadOptions.convertDateTimeData = false;

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

                const worksheet = workbook.worksheets.get(0);
                const sheetName = worksheet.name;
                const nameLength = sheetName.length;

                console.log(sheetName);
                console.log(nameLength);
                console.log("CSV file opened successfully!");

                document.getElementById('result').innerHTML = `<p>Worksheet Name: ${sheetName}</p><p>Name Length: ${nameLength}</p><p style="color: green;">CSV file opened successfully!</p>`;
            });
        });
    </script>
</html>

Öppning av Textfiler med Anpassad Separator

Textfiler används för att hålla kalkylbladsdata utan formatering. Filen är en typ av vanlig textfil som kan ha några anpassade separatorer.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells CSV to Text Example</title>
    </head>
    <body>
        <h1>Convert CSV to Text Example</h1>
        <input type="file" id="fileInput" accept=".csv,.txt" />
        <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 } = 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();

            // Instantiate Text File's LoadOptions
            const txtLoadOptions = new TxtLoadOptions();

            // Specify the separator
            txtLoadOptions.separator = ",";

            // Specify the encoding type
            txtLoadOptions.encoding = AsposeCells.EncodingType.UTF8;

            // Create a Workbook object and open the file from the uploaded data
            const wb = new Workbook(new Uint8Array(arrayBuffer), txtLoadOptions);

            // Save file as text and provide download link
            const outputData = wb.save(SaveFormat.Text);
            const blob = new Blob([outputData]);
            const downloadLink = document.getElementById('downloadLink');
            downloadLink.href = URL.createObjectURL(blob);
            downloadLink.download = 'output.txt';
            downloadLink.style.display = 'block';
            downloadLink.textContent = 'Download Text File';

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

Öppning av tabbehållna filer

Tab-separerade (Text) filer innehåller kalkylbladsdata men utan formatering. Data är arrangerad i rader och kolumner som i tabeller och kalkylblad. En fil med tab-separering är i princip en speciell typ av platt textfil med ett tab-tecken mellan varje kolumn.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example - Open Tab Delimited</title>
    </head>
    <body>
        <h1>Open Tab Delimited Example</h1>
        <input type="file" id="fileInput" accept=".txt,.csv,.tsv" />
        <button id="runExample">Open File</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, LoadOptions, LoadFormat, SaveFormat, 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 tab-delimited (.txt/.tsv) file.</p>';
                return;
            }

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

            // Instantiate LoadOptions specified by the LoadFormat.
            const loadOptions = new LoadOptions(LoadFormat.TabDelimited);

            // Create a Workbook object and open the file from the uploaded file buffer
            const wbTabDelimited = new Workbook(new Uint8Array(arrayBuffer), loadOptions);

            document.getElementById('result').innerHTML = '<p style="color: green;">Tab delimited file opened successfully!</p>';
        });
    </script>
</html>

Öppning av tabseparatorvärdefiler (TSV-filer)

Tab-separerade värden (TSV)-filer innehåller kalkbladdata men utan någon formatering. Det är detsamma som en Tab-betalad fil där data är ordnad i rader och kolumner som i tabeller och kalkblad.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells TSV Load Example</title>
    </head>
    <body>
        <h1>TSV Load Example</h1>
        <input type="file" id="fileInput" accept=".tsv" />
        <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, LoadOptions, LoadFormat, 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 TSV file.</p>';
                return;
            }

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

            // Instantiate LoadOptions specified by the LoadFormat.
            const loadOptions = new LoadOptions(LoadFormat.Tsv);

            // Create a Workbook object and opening the file from the uploaded file stream
            const workbook = new Workbook(new Uint8Array(arrayBuffer), loadOptions);

            // Using the Sheet 1 in Workbook
            const worksheet = workbook.worksheets.get(0);

            // Accessing a cell using its name
            const cell = worksheet.cells.get("C3");

            // Display cell name and value
            document.getElementById('result').innerHTML = `<p>Cell Name: ${cell.name} Value: ${cell.stringValue}</p>`;
        });
    </script>
</html>

Öppning av SXC-filer

StarOffice Calc liknar Microsoft Excel och stöder formler, diagram, funktioner och makron. Kalkbladen som skapas med denna programvara sparas med SXC-ändelsen. SXC-filen används också för OpenOffice.org Calc kalkbladsfiler. Aspose.Cells kan läsa SXC-filer som visas i följande kodexempel.

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>Read SXC Cell Example</h1>
        <input type="file" id="fileInput" accept=".sxc" />
        <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, LoadOptions, LoadFormat, SaveFormat, Worksheet, Cell, 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');
            const resultDiv = document.getElementById('result');

            if (!fileInput.files.length) {
                resultDiv.innerHTML = '<p style="color: red;">Please select an SXC file.</p>';
                return;
            }

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

            // Instantiate LoadOptions specified by the LoadFormat.
            const loadOptions = new LoadOptions(LoadFormat.Sxc);

            // Create a Workbook object and open the file from the uploaded data
            const workbook = new Workbook(new Uint8Array(arrayBuffer), loadOptions);

            // Using the first worksheet in Workbook
            const worksheet = workbook.worksheets.get(0);

            // Accessing a cell using its name
            const cell = worksheet.cells.get("C3");

            // Display cell name and string value
            resultDiv.innerHTML = `<p>Cell Name: ${cell.name} Value: ${cell.stringValue}</p>`;
        });
    </script>
</html>

Öppning av FODS-filer

FODS-fil är ett kalkblad sparat i OpenDocument XML utan någon komprimering. Aspose.Cells kan läsa FODS-filer som demonstreras i följande kodexempel.

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title>Aspose.Cells Example - Open FODS</title>
    </head>
    <body>
        <h1>Open FODS Example</h1>
        <input type="file" id="fileInput" accept=".fods" />
        <button id="runExample">Open FODS File</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, LoadOptions, LoadFormat } = 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');
            const resultDiv = document.getElementById('result');

            if (!fileInput.files.length) {
                resultDiv.innerHTML = '<p style="color: red;">Please select a FODS file.</p>';
                return;
            }

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

            // Instantiate LoadOptions specified by the LoadFormat.
            const loadOptions = new LoadOptions(LoadFormat.Fods);

            // Create a Workbook object and open the file from the uploaded data
            const workbook = new Workbook(new Uint8Array(arrayBuffer), loadOptions);

            document.getElementById('result').innerHTML = '<p style="color: green;">FODS file opened successfully!</p>';
        });
    </script>
</html>
Öppna olika Microsoft Excel versioner filer med JavaScript via C++ Filtrera definierade namn vid laddning av arbetsbok med JavaScript via C++