Compress XLT format using C#

XLT Compression Overview

Aspose.ZIP for .NET provides a fully managed C# API for compressing XLT spreadsheets in server-side and desktop applications. It supports single files and large batches, works with file paths or streams, and lets you control compression level and archive format. This is handy when bundling spreadsheets for reporting cycles. Create ZIP, 7Zip, TAR, GZIP, and other archives without external utilities, and use encryption options when you need to protect XLT data. This provides a practical way to automate packaging and reduce storage footprints in .NET solutions.

  PM> Install-Package Aspose.ZIP

C# Example: Create a ZIP Archive from XLT Files

The snippet below shows the core API steps to compress a XLT file: create an Archive object, add the entry, and save the resulting ZIP.

Compress XLT file via .NET:

    var dir = "full directory path";
    using (var arch = new Archive())
    {
    arch.CreateEntry("filename.xlt", dir+"file.xlt");
    arch.Save(dir+"archived_result.zip");
    }

FAQ

Can I compress multiple XLT files into a single ZIP archive using C#

1. Yes. Aspose.ZIP for .NET allows you to load and compress multiple XLT files by adding each file as an entry to the Archive object. You can combine individual files, folders, or streams into a single ZIP archive through a straightforward C# workflow.

Does Aspose.ZIP for .NET reduce the original quality of XLT files?

2. No. Aspose.ZIP performs lossless compression, meaning that the content and quality of your XLT files remain unchanged. The library only reduces file size by applying efficient archive compression algorithms without altering the actual data inside the file.

Can I password-protect ZIP archives that contain XLT files?

3. Yes. The library supports password protection and AES encryption, allowing you to securely package sensitive XLT files. You can specify encryption settings when creating entries or during the archive-generation process.