Protect and Unprotect Workbook Structure with JavaScript via C++
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To prevent other users from viewing hidden worksheets, adding, moving, deleting, or hiding worksheets, and renaming worksheets, you can protect the structure of your Excel workbook with a password.
Protect and unprotect Workbook Structure in MS Excel
- Click Review > Protect Workbook.
- Enter a password in the Password box.
- Select OK, re-enter the password to confirm it, and then select OK again.
Protect Workbook Structure Using Aspose.Cells for JavaScript via C++
Only need the following simple lines of code to implement protecting workbook structure of Excel files.
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
</head>
<body>
<h1>Protect Workbook Structure Example</h1>
<input type="file" id="fileInput" accept=".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, SaveFormat, ProtectionType, 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 () => {
// Create a new workbook
const workbook = new Workbook();
// Protect workbook structure with a password
workbook.protect(ProtectionType.Structure, "password");
// Save the workbook to a downloadable file
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'Book1_protected.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Protected Workbook';
document.getElementById('result').innerHTML = '<p style="color: green;">Workbook created and protected successfully! Click the download link to get the file.</p>';
});
</script>
</html>
Unprotect Workbook Structure Using Aspose.Cells for JavaScript via C++
Unprotecting workbook structure is easy with Aspose.Cells API.
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example</title>
<meta charset="utf-8" />
</head>
<body>
<h1>Unprotect Workbook Structure Example</h1>
<input type="file" id="fileInput" accept=".xls,.xlsx,.csv" />
<button id="runExample">Unprotect Workbook</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');
if (!fileInput.files.length) {
document.getElementById('result').innerHTML = '<p style="color: red;">Please select an Excel file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
const workbook = new Workbook(new Uint8Array(arrayBuffer));
workbook.unprotect("password");
const outputData = workbook.save(SaveFormat.Xlsx);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
const baseName = file.name.replace(/(\.xlsx|\.xls|\.csv)$/i, '');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = baseName + '.unprotected.xlsx';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Unprotected Excel File';
document.getElementById('result').innerHTML = '<p style="color: green;">Workbook structure unprotected successfully! Click the download link to get the modified file.</p>';
});
</script>
</html>
Note: a correct password is required.