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Digitally Sign XLSX File Online via e-Signature App or using Java

Develop powerful Java based XLSX document signing applications. Freely add digital signature into various documents including XLSX files online via app with instant download.

XLSX Signature via C# .NET XLSX Signature in Android Apps

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Add Digital Signature into XLSX Files Online using App

  1. Upload XLSX files to sign digitally
  2. Add text for signature or upload signature image
  3. Click the “Sign” button
  4. Download the signed XLSX file

Digitally Sign XLSX File via Java

  1. Add Java library reference into your project
  2. Create DigitalSignatureCollection class object
  3. Load pfx via FileInputStream
  4. Create KeyStore object with PKCS12 cryptography
  5. Use KeyStore.load method for loading certificate stream and password
  6. Create an instance of DigitalSignature and add in collection
  7. Load the worksheet using Workbook
  8. Use setDigitalSignature(signatures) to sign the worksheet
  9. Finally save it
 

Java code for adding digital signature in XLSX files

 
 

Develop E-Signature Application using Java

Need to develop Java script or utility app to easily sign multiple XLSX files digitally? With Aspose.Cells for Java , child API of Aspose.Total for Java , any Java developer can integrate the above API code to program eSignature app for signing across spreadsheets. Powerful Java library for spreadsheet signing, supports many popular formats including XLSX format.

XLSX eSignature library for Java

There are alternative options to install “ Aspose.Cells for Java ” or “ Aspose.Total for Java ” onto your system. Our Java package is designed to be cross-platform, compatible with JVM implementations on various operating systems such as Microsoft Windows, Linux, macOS, Android, and iOS. Please choose one that resembles your needs and follow the step-by-step instructions:

System Requirements

  • J2SE 6.0 (1.6)
  • J2SE 7.0 (1.7) or above

For details please refer to [Product Documentation](https://docs.aspose.com/cells/java/system-requirements/#optional-dependencies).
 

✅ Adding and Verifying XLSX Signatures Using Java APIs: Protect Modern Spreadsheets

Digitally signing or verifying XLSX files with Java APIs ensures that modern dashboards, KPI reports, and operational spreadsheets remain authentic and compliant. This safeguards financial and performance data in BI tools and reporting pipelines.

✅ Key Use Cases

  • Digitally sign performance dashboards for data integrity.
  • Validate KPIs in quarterly reports for accountability.
  • Enforce operational spreadsheet approvals for governance.
  • Certify budget sheets for audit readiness.
  • Secure confidential business reports with verified signatures.

⚙️ Automation Scenarios

  • Enable BI tools with automated signature workflows.
  • Support secure departmental reporting with signature checks.
  • Streamline document tracking for compliance.
  • Automate audit-ready approvals on financial data.
  • Enforce role-based access for signed XLSX files.

FAQs

  • Can I use above Java code in my application?
    Yes, you are welcome to download this code. One can easily develop a professional solution to add digital signature in XLSX file using Java. Use Aspose XLSX eSignature API to develop high-level, platform independent software in Java.
  • Is this document digital signing App work only on Windows?
    You have the flexibility to initiate document signing from any device, irrespective of the operating system it runs on, whether it be Windows, Linux, Mac OS, or Android. All that's required is a contemporary web browser and an active internet connection.
  • Is it safe to use the online app to sign multiple XLSX documents?
    Of course! The output files generated through our service will be securely and automatically removed from our servers within a 24-hour timeframe. As a result, the download links associated with these files will cease to be functional after this period.
  • What browser should to use App?
    You can use any modern web browser like Google Chrome, Firefox, Opera, or Safari for online XLSX document compression.
  • How can I sign multiple XLSX files?
    Start by uploading one or more files you want to sign. You can either drag and drop your XLSX files or simply click inside the white area. Afterward, click the 'Sign' button, and our online esigning app will quickly process the uploaded files.
  • How long does it take to sign the XLSX files?
    This e-signature application operates quickly, It may take a few seconds to upload the files and sign them.

Explore File eSignature Options with Java

Sign BMP (Bitmap Image File)
Sign DOC (Microsoft Word Binary Format)
Sign DOCX (Office 2007+ Word Document)
Sign Excel
Sign GIF (Graphical Interchange Format)
Sign IMAGE (Image Files)
Sign JPEG (Joint Photographic Expert Group)
Sign JPG
Sign ODP (OpenDocument Presentation Format)
Sign ODS (OpenDocument Spreadsheet)
Sign ODT (OpenDocument Text File Format)
Sign PDF (Portable Document Format)
Sign PNG (Portable Network Graphic)
Sign Powerpoint
Sign PPT (PowerPoint Presentation)
Sign PPTX (Open XML presentation Format)
Sign PSD (Photoshop Document)
Sign TIFF (Tagged Image File Format)
Sign Word
Sign XLS (Microsoft Excel Binary Format)
Sign XLSX (Open XML Workbook)