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Edit XLTM Formats in C#

Native and high performance XLTM document editing using server-side Aspose.Cells for .NET APIs, without the use of any software like Microsoft or Adobe PDF.

How to Edit XLTM File Using C#

In order to edit XLTM file, we’ll use Aspose.Cells for .NET API which is a feature-rich, powerful and easy to use API for C# platform for any editor. Open NuGet package manager, search for Aspose.Cells and install. You may also use the following command from the Package Manager Console.

Command
PM> Install-Package Aspose.Cells

Steps for Editing XLTM Files in C#

A basic document editing with Aspose.Cells for .NET APIs can be done with just few lines of code.

Include the namespace in your class file
Load your sample file.
Add and access the new worksheet of the workbook.
Get the desired cell(s) of the worksheet and put the value in the cell(s).
Insert PivotTable and set the style
Use Save method to save the workbook as XLTM file.

System Requirements

Our APIs are supported on all major platforms and Operating Systems. Before executing the code below, please make sure that you have the following prerequisites on your system.

Microsoft Windows or a compatible OS with .NET Framework, .NET Core, Windows Azure, Mono or Xamarin Platforms
Development environment like Microsoft Visual Studio
Add reference to the Aspose.Cells for .NET DLL in your project - Install from NuGet using the Download button above

Edit XLTM Files - C#

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.

Online XLTM Editor Live Demos

Edit XLTM documents right now by visiting our Live Demos website . The live demo has the following benefits

No need to download Aspose API.

No need to write any code.

Just upload your XLTM files, Use online editor for editing instantly.

Then save and download.

XLTM What is XLTM File Format?

The XLTM file extension represents files that are generated by Microsoft Excel as Macro-enabled template files. XLTM files are similar to XLTX in structure other than that the later doesn't support creating template files with macros. Such template files are used to generate and set the layout, formatting, and other settings along with the macros to facilitate creating similar XLSX files then.