Free online XLS to GIF conversion via c++

Use free online app or C++ SDK to convert between XLS & GIF as well as several popular formats from Microsoft^® Excel.

C++ Code for Converting XLS to GIF

// Converting to XLS using Aspose.Cells
std::shared_ptr<requests::ConvertRequest> request(new requests::ConvertRequest(
    std::make_shared< std::wstring >("HTML") ,        
    requestFile,nullptr,nullptr,nullptr));
auto actual = getApi()->convert(request);
if(actual->good()){
    std::ofstream out("TestConvertFile_CPP.XLS", std::istream::binary);
    actual->seekg(0,std::ios_base::beg);
    while(!actual->eof()){
        char* buffer = new char[256];
        actual->read(buffer,256);
        out.write(buffer,256);
    }
}
%!(EXTRA string=HTML)
    // Converting to HTML using Aspose.Cells
std::shared_ptr<requests::ConvertRequest> request(new requests::ConvertRequest(
    std::make_shared< std::wstring >("GIF") ,        
    requestFile,nullptr,nullptr,nullptr));
auto actual = getApi()->convert(request);
if(actual->good()){
    std::ofstream out("TestConvertFile_CPP.HTML", std::istream::binary);
    actual->seekg(0,std::ios_base::beg);
    while(!actual->eof()){
        char* buffer = new char[256];
        actual->read(buffer,256);
        out.write(buffer,256);
    }
}
%!(EXTRA string=GIF)

How to convert XLS to GIF 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 XLS document to HTML
Initialize SaveOption from CellsAPI with parameters SaveFormat as GIF
Call cellsSaveAsPostDocumentSaveAs method to convert XLS file to GIF

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 C++ 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 XLS to other formats online

You can use Aspose.Cells to transform XLS 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 XLS 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 GIF: 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 XLS document
Call SaveAsPostDocument method of CellsApi class instance for conversion from XLS

How to Convert XLS to PDF online

For XLS to PDF, you need to go to the web page XLS to PDF and upload the XLS 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 GIF format

For Webpage to GIF format conversion, you need to go to the website Webpage to GIF 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 GIF file to your device.

FAQ

What is XLS Format?
Files with XLS extension represent Excel Binary File Format. Such files can be created by Microsoft Excel as well as other similar spreadsheet programs such as OpenOffice Calc or Apple Numbers. File saved by Excel is known as Workbook where each workbook can have one or more worksheets. Data is stored and displayed to users in table format in worksheet and can span numeric values, text data, formulas, external data connections, images, and charts. Applications like Microsoft Excel lets you export workbook data to several different formats including PDF, CSV, XLSX, TXT, HTML, XPS, and several others. The XLS file format was replaced with a more open and structured format, XLSX, with the release of Microsoft Excel 2007. The latest versions still provide support for creating and reading XLS files, though XLSX is the first choice of use now.
What is GIF Format?
A GIF or Graphical Interchange Format is a type of highly compressed image. Owned by Unisys, GIF uses the LZW compression algorithm that does not degrade the image quality. For each image GIF typically allow up to 8 bits per pixel and up to 256 colours are allowed across the image. In contrast to a JPEG image, which can display up to 16 million colours and fairly touches the limits of the human eye. Back when the internet emerged, GIFs remained the best choice because they required low bandwidth and compatible for the graphics that consume solid areas of colour. An animated GIF combines numerous images or frames into a single file and displays them in a sequence to generate an animated clip or a short video. The colour limitations are up to 256 for each frame and are likely to be the least suitable for reproducing other images and photographs with colour gradient.
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 XLS to GIF 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.