Free online XLSX to PPTX conversion via nodejs

Use free online app or Nodejs SDK to convert between XLSX & PPTX as well as several popular formats from Microsoft^® Excel.

Nodejs Code for Converting XLSX to PPTX

// Converting XLSX to HTML
var req = new model.CellsWorkbook_PutConvertWorkbookRequest({
    workbook : fs.createReadStream(localPath  + filename + ".XLSX"),
    format : "HTML",
});

    Converting HTML to PPTX
const fileName = "uploaded.HTML";
const outPath = "uploaded.PPTX";
const api = TestInitializer.getApi();
return api.copyFile("TempTests/" + fileName, folderName + "/" + fileName).then(() => {
    return api.savePresentation(fileName, model.ExportFormat.Pdf, outPath, null, "password", folderName).then((putResult) => {
        return api.objectExists(outPath).then((existsResult) => {
        });
    });
});

How to convert XLSX to PPTX online in Cloud Apps

Initialize WordsApi and CellsApi with Client Id, Client Secret, Base URL & API version
Set ConvertDocumentRequest with parameters local file name and format as HTML
Call WordsApi convertDocument to convert XLSX document to HTML
Initialize SaveOption from CellsAPI with parameters SaveFormat as PPTX
Call cellsSaveAsPostDocumentSaveAs method to convert XLSX file to PPTX

Get Started with Aspose.Total REST APIs

Create an account at Dashboard to get free API quota & authorization details
Get Aspose.Words and Aspose.Cells Cloud SDKs for Nodejs source code from Aspose.Words GitHub and Aspose.Cells GitHub repos to compile/use the SDK yourself or head to the Releases for alternative download options.
Also have a look at Swagger-based API Reference for Aspose.Words and Aspose.Cells to know more about the REST API.

How to Convert Excel XLSX to other formats online

You can use Aspose.Cells to transform XLSX files into HTML format. Then, you can input the HTML files to any of the APIs in Aspose.Total, such as Aspose.Words, Aspose.PDF, Aspose.Email, Aspose.Slides, Aspose.Diagram, Aspose.Tasks, Aspose.3D, Aspose.HTML. This will allow you to output the files in hundred of different formats.

To see the full list of supported formats, please check the Aspose.Total Cloud page.

How to convert MS Excel XLSX to Image formats

Aspose.Cells Cloud SDK produces few quick and easy ways to convert MS Excel files to various image formats similar to what we have done above for PPTX: by direct REST API calls or using SDKs. There are multiple image formats accessible for converting Excel sheets with Aspose.Cells Cloud APIs - JPEG, PNG, BMP, GIF, and TIFF.

Create SaveOption object and set desire format using SaveFormat property.
Create ConvertDocumentRequest object to convert XLSX document
Call SaveAsPostDocument method of CellsApi class instance for conversion from XLSX

How to Convert XLSX to PDF online

For XLSX to PDF, you need to go to the web page XLSX to PDF and upload the XLSX file from your device. Then, you need to click on the “Convert” button and wait for the conversion to finish. After that, you can download the PDF file to your device.

How to Convert Webpage to PPTX format

For Webpage to PPTX format conversion, you need to go to the website Webpage to PPTX and enter the URL of the webpage you want to convert in the input box. Then, you need to click on the “Convert” button and wait for the conversion to finish. After that, you can download the PPTX file to your device.

FAQ

What is XLSX Format?
XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Based on structure organized according to the Open Packaging Conventions as outlined in Part 2 of the OOXML standard ECMA-376, the new format is a zip package that contains a number of XML files. The underlying structure and files can be examined by simply unzipping the .xlsx file.
What is PPTX Format?
Files with PPTX extension are presentation files created with popular Microsoft PowerPoint application. Unlike the previous version of presentation file format PPT which was binary, the PPTX format is based on the Microsoft PowerPoint open XML presentation file format. A presentation file is a collection of slides where each slide can comprise of text, images, formatting, animations, and other media. These slides are presented to audience in the form of slideshows with custom presentation settings.
How can I get started with Aspose.Total REST APIs?
Quickstart not only guides through the initialization of Aspose.Total Cloud API, it also helps in installing the required libraries.
Where can I see the release notes for Aspose.Total Cloud API?
Complete release notes can be reviewed at Aspose.Total Cloud Documentation.
Is it safe to convert XLSX to PPTX in the Cloud?
Of course! Aspose Cloud uses Amazon EC2 cloud servers that guarantee the security and resilience of the service. Please read more about Aspose's Security Practices.
What file formats are supported by Aspose.Total Cloud API?
Aspose.Total Cloud can convert file formats from any product family to any other product family to PDF, DOCX, XPS, image(TIFF, JPEG, PNG BMP), MD and more. Checkout the complete list of supported file formats.
I can not find the SDK for my favorite language. What should I do?
Aspose.Total Cloud is also available as a Docker Container. Try using it with cURL in case your required SDK is not available yet.