CSV 轉換為 Excel XLSX（Node.JS）

將 CSV 資料轉換為現代的 XLSX 工作簿是許多需要在不依賴 Microsoft Excel 本身的情況下產生 Excel 報表的 Node.JS 應用程式的常見需求。 Aspose.HTML Cloud SDK for Node.JS 提供強大的 API，能在雲端完整處理轉換。在本指南中，您將看到完整的程式碼範例，學習如何使用 cURL 呼叫 REST API，並了解在 Node.JS 中高效執行 CSV 轉 Excel XLSX 轉換所需的設定步驟。

完整程式碼範例：CSV 轉 Excel XLSX 轉換於 Node.JS

本範例示範如何使用 Aspose.HTML Cloud SDK for Node.JS 將 CSV 檔案轉換為 XLSX 工作簿。

const fs = require('fs');
const path = require('path');
const {
    HtmlApi,
    Configuration,
    UploadFileRequest,
    DownloadFileRequest,
    ConvertDocumentRequest,
    DeleteFileRequest
} = require('@asposecloud/aspose-html-cloud');

// Replace with your actual Aspose Cloud credentials
const config = new Configuration({
    clientId: 'YOUR_CLIENT_ID',
    clientSecret: 'YOUR_CLIENT_SECRET'
});

const htmlApi = new HtmlApi(config);

async function convertCsvToXlsx() {
    const localCsvPath = path.resolve(__dirname, 'input.csv');
    const localXlsxPath = path.resolve(__dirname, 'output.xlsx');

const remoteCsvPath = 'input.csv';
    const remoteXlsxPath = 'output.xlsx';

try {
        // Upload CSV using a read stream (efficient for large files)
        const uploadStream = fs.createReadStream(localCsvPath);
        await htmlApi.uploadFile(new UploadFileRequest({
            path: remoteCsvPath,
            file: uploadStream
        }));

// Convert CSV to XLSX
        await htmlApi.convertDocument(new ConvertDocumentRequest({
            inputPath: remoteCsvPath,
            outputPath: remoteXlsxPath,
            format: 'xlsx'
        }));

// Download the resulting XLSX file
        const downloadResponse = await htmlApi.downloadFile(new DownloadFileRequest({
            path: remoteXlsxPath
        }));
        const writeStream = fs.createWriteStream(localXlsxPath);
        await new Promise((resolve, reject) => {
            downloadResponse.body.pipe(writeStream);
            downloadResponse.body.on('end', resolve);
            downloadResponse.body.on('error', reject);
        });

console.log('Conversion completed successfully.');
    } catch (error) {
        console.error('Error during conversion:', error);
    } finally {
        // Cleanup remote files
        try {
            await htmlApi.deleteFile(new DeleteFileRequest({ path: remoteCsvPath }));
            await htmlApi.deleteFile(new DeleteFileRequest({ path: remoteXlsxPath }));
        } catch (cleanupError) {
            // Ignore cleanup errors
        }
    }
}

convertCsvToXlsx();

注意： 此程式碼範例示範了核心功能。在將其用於您的專案之前，請確保更新檔案路徑（input.csv、output.xlsx 等）以符合實際檔案位置，驗證所有必要的相依項目已正確安裝，並在開發環境中徹底測試。若遇到任何問題，請參閱官方文件或聯繫支援團隊尋求協助。

使用 cURL 與 REST API 進行 CSV 到 XLSX 的轉換

如果您偏好直接的 REST 方法，亦可使用 cURL 命令執行相同的轉換。以下步驟說明如何取得存取權杖、上傳 CSV、觸發轉換，並下載 XLSX 檔案。

# 1. Get an access token
curl -X POST "https://api.aspose.cloud/connect/token" \
     -H "Content-Type: application/x-www-form-urlencoded" \
     -d "grant_type=client_credentials&client_id=YOUR_CLIENT_ID&client_secret=YOUR_CLIENT_SECRET"

# 2. Upload the source CSV file
curl -X PUT "https://api.aspose.cloud/v4.0/html/storage/file/input.csv" \
     -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
     -H "Content-Type: text/csv" \
     --data-binary @input.csv

# 3. Convert CSV to XLSX
curl -X POST "https://api.aspose.cloud/v4.0/html/convert?format=xlsx&outPath=output.xlsx" \
     -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
     -H "Content-Type: application/json" \
     -d '{"inputPath":"input.csv"}'

# 4. Download the generated XLSX file
curl -X GET "https://api.aspose.cloud/v4.0/html/storage/file/output.xlsx" \
     -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
     -o output.xlsx

<!--[CODE_SNIPPET_END]-->

For more details on request parameters and additional options, see the [official API documentation](https://reference.aspose.cloud/html/).

## Breaking Down CSV to Excel Conversion in Node.JS

Understanding how the code achieves CSV to Excel XLSX conversion in Node.JS helps you customize the process for your own projects.

1. **Configuration Setup** – The `Configuration` class stores your `clientId` and `clientSecret`.  
   <!--[CODE_SNIPPET_START]-->
   ```javascript
   const [config](https://docs.fileformat.com/programming/config/) = new Configuration({
       clientId: 'YOUR_CLIENT_ID',
       clientSecret: 'YOUR_CLIENT_SECRET'
   });

API Initialization – HtmlApi is instantiated with the configuration to access all conversion endpoints.
```
const htmlApi = new HtmlApi(config);
```

Uploading the CSV – A read stream (fs.createReadStream) uploads the file efficiently, which is crucial for large CSV files.

const uploadStream = fs.createReadStream(localCsvPath);
await htmlApi.uploadFile(new UploadFileRequest({
    path: remoteCsvPath,
    file: uploadStream
}));

Executing the Conversion – convertDocument is called with format: 'xlsx' to perform the CSV to Excel XLSX conversion.

await htmlApi.convertDocument(new ConvertDocumentRequest({
    inputPath: remoteCsvPath,
    outputPath: remoteXlsxPath,
    format: 'xlsx'
}));

Downloading the Result – The SDK streams the generated XLSX back to the local file system.

const downloadResponse = await htmlApi.downloadFile(new DownloadFileRequest({
    path: remoteXlsxPath
}));
const writeStream = fs.createWriteStream(localXlsxPath);
await new Promise((resolve, reject) => {
    downloadResponse.body.pipe(writeStream);
    downloadResponse.body.on('end', resolve);
    downloadResponse.body.on('error', reject);
});

These steps illustrate the end‑to‑end flow of CSV to Excel XLSX conversion in Node.JS using the Aspose.HTML Cloud SDK.

Prerequisites and Setup - Installing Aspose.HTML Cloud SDK for Node.JS

Node.js Runtime – Ensure you have Node.js 14 or higher installed.
Install the SDK – Run the following npm command (download URL: https://releases.aspose.cloud/html/nodejs/).
```
npm install @asposecloud/aspose-html-cloud --save
```
Configure Credentials - Create a .asposecloud configuration file or set environment variables with your clientId and clientSecret obtained from the Aspose Cloud dashboard.
Verify Installation - Execute node -e "require('@asposecloud/aspose-html-cloud')" to confirm the package loads without errors.

With the SDK installed and credentials configured, you are ready to run the conversion code.

Conclusion

This guide walked you through CSV to Excel XLSX conversion in Node.JS using Aspose.HTML Cloud SDK for Node.JS. You saw a complete working example, learned how to perform the same task with cURL, and set up the SDK on your development machine. The library eliminates the need for Microsoft Excel on the server, making large‑scale report generation lightweight and reliable. For production use, acquire a commercial license or use a temporary license from the temporary license page to stay compliant.

FAQs

What file formats are supported for conversion besides CSV and XLSX?
Aspose.HTML supports a wide range of formats including HTML, PDF, DOCX, and PPTX. Refer to the product documentation for the full list.
How can I convert multiple CSV files in a single run?
Loop through your file list, calling the upload, convert, and download steps for each file. The SDK’s streaming approach works well for batch processing.
Is it possible to customize the Excel output (e.g., column widths, styles)?
The basic conversion creates a standard workbook. For advanced styling, you can post‑process the XLSX using Aspose.Cells Cloud after conversion.
Where can I find pricing details for the Aspose.HTML Cloud SDK?
Pricing information is available on the Aspose website. You can also start with a temporary license for evaluation before purchasing a full subscription.

完整程式碼範例：CSV 轉 Excel XLSX 轉換於 Node.JS#

使用 cURL 與 REST API 進行 CSV 到 XLSX 的轉換#

Prerequisites and Setup - Installing Aspose.HTML Cloud SDK for Node.JS#

Conclusion#

FAQs#

Read More#

完整程式碼範例：CSV 轉 Excel XLSX 轉換於 Node.JS

使用 cURL 與 REST API 進行 CSV 到 XLSX 的轉換

Prerequisites and Setup - Installing Aspose.HTML Cloud SDK for Node.JS

Conclusion

FAQs

Read More