Encrypt XLS Files via Java
Password-protect Excel spreadsheets including XLS format using .NET Library.
Aspose.Cells for Java
Overview
How to Secure XLS File Using Java
In order to protect XLS file, we’ll use
API which is a feature-rich, powerful and easy to use encryption API for Java platform. You can download its latest version directly from
and install it within your Maven-based project by adding the following configurations to the pom.xml.
Aspose.Cells
<repository>
<id>AsposeJavaAPI</id>
<name>Aspose Java API</name>
<url>https://repository.aspose.com/repo/</url>
</repository>
Repository
<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-cells</artifactId>
<version>version of aspose-cells API</version>
<classifier>jdk17</classifier>
</dependency>
Steps to Protect XLS Files via Java
Document protection using Aspose.Cells APIs can be done with just few lines of code.
- Load XLS file by instantiating Workbook class
- Use protect(..) method with ProtectionType and Password
- Save the protected XLS file by save() method
System Requirements
Aspose.Cells for Java supports on all major platforms and Operating Systems. Please make sure that you have the following prerequisites.
- Microsoft Windows or a compatible OS with Java Runtime Environment for JSP/JSF Application and Desktop Applications.
- Get latest version of Aspose.Cells for Java directly from Maven .
Dependency
// Open the XLS file
Workbook wkb = new Workbook("sourceFile.xls");
// Protect workbook by specifying protection type
wkb.protect(ProtectionType.ALL, "12345");
// Save the XLS file
wkb.save("lockedFile.xls");
About Aspose.Cells for Java API
Aspose.Cells API can be used to create, edit, convert and render Microsoft Excel formats to different formats. Moreover, it can be used for comprehensive charting, scalable reporting and reliable calculations within software applications. Aspose.Cells is a standalone API and it does not require any software like Microsoft or OpenOffice.Free App to Protect XLS
XLS What is XLS File 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.
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