C# API to Render MHTML to XLTM

Export MHTML File to XLTM via C# without using Microsoft^® Excel or Adobe^® Acrobat Reader

Using Aspose.Total for .NET you can easily convert MHTML file to XLTM within any .NET, C#, ASP.NET and VB.NET applications. Firstly, by using Aspose.PDF for .NET , you can export MHTML to XLSX. After that, by using Aspose.Cells for .NET Spreadsheet Programming API, you can convert XLSX to XLTM.

.NET API to Convert MHTML to XLTM

Open MHTML file using Document class
Convert MHTML to XLSX by using Save method
Load XLSX document by using Workbook class
Save the document to XLTM format using Save method and set Xltm as SaveFormat

Get Started with .NET File Automation APIs

Install from command line as nuget install Aspose.Total or via Package Manager Console of Visual Studio with Install-Package Aspose.Total.

Alternatively, get the offline MSI installer or DLLs in a ZIP file from downloads .

Convert Protected MHTML to XLTM via C#

If your MHTML document is password protected, you cannot convert it to XLTM without the password. Using the API, you can first open the protected document using a valid password and convert it after it. In order to open the encrypted file, you can initialize a new instance of the Document class and pass the filename and password as arguments.

Convert MHTML File to XLTM with Watermark via C#

While converting MHTML file to XLTM, you can also add watermark to your output XLTM file format. In order to add a watermark, you can create a new Workbook object and open the converted XLSX document, select Worksheet via its index, create a Shape and use its AddTextEffect function. After that you can save your XLSX document as XLTM with Watermark.

Other Conversion Options

MHTML TO TSV (Tab Seperated Values)

MHTML TO FODS (OpenDocument Flat XML Spreadsheet)

MHTML TO XLAM (Excel Macro-Enabled Add-In)

MHTML TO TXT (Text Document)

MHTML TO XLSM (Macro-enabled Spreadsheet)

MHTML TO EXCEL

MHTML TO CSV (Comma Seperated Values)

MHTML TO XLSB (Excel Binary Workbook)

MHTML TO ODS (OpenDocument Spreadsheet)

MHTML TO SXC (StarOffice Calc Spreadsheet)

MHTML TO XLTX (Excel Template)

MHTML TO DIF (Data Interchange Format)

MHTML What is MHTML File Format?

Files with MHTML extension represent a web page archive format that can be created by a number of different applications. The format is known as archive format because it saves the web HTML code and associated resources in a single file. These resources include anything linked to the webpage such as images, applets, animations, audio files and so on. MHTML files can be opened in a variety of applications such as Internet Explorer and Microsoft Word. Microsoft Windows uses MHTML file format for recording scenarios of problems observed during the usage of any application on Windows that raises issues. The MHTML file format encodes the page contents similar to specifications defined in message/rfc822 which is plain text email related specifications. The actual specifications of the format are as detailed by RFC 2557.

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.