Check if VBA Code is Signed with JavaScript via C++

The following code explains how to check if the VBA code is signed or not using the VbaProject.isSigned() property. You can use any of your excel files to test this code. For testing purposes, you can use this excel file used in the code.

Check if VBA Code is Signed in JavaScript

<!DOCTYPE html>
<html>
    <head>
        <title>Aspose.Cells Example</title>
    </head>
    <body>
        <h1>Aspose.Cells VBA Signed Check Example</h1>
        <input type="file" id="fileInput" accept=".xls,.xlsx,.xlsm,.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, 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 Excel file.</p>';
                return;
            }

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

            // Instantiating a Workbook object from the uploaded file
            const workbook = new Workbook(new Uint8Array(arrayBuffer));

            // Accessing the VBA project and checking if it's signed
            const vbaProject = workbook.vbaProject;
            const isSigned = vbaProject.isSigned();

            resultDiv.innerHTML = `<p>Is VBA Code Project Signed: ${isSigned}</p>`;
        });
    </script>
</html>

Console Output

Below is the console output of the above code using the sample excel file provided by the link.

Is VBA Code Project Signed: True
Export VBA Certificate to File or Stream with JavaScript via C++ Digitally Sign a VBA Code Project with Certificate using JavaScript via C++