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XLS to MHT converter

Convert XLS to MHT online from any device with a free converter.

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We have already processed 5,836,055 files with total size of 9,543,609 Mbytes

About Spreadsheet converter

Convert XLS to MHT files online with our free spreadsheet converter. Whether you're on Windows 10, Mac, Android or iPhone, converting XLS files is quick and easy.

Spreadsheet file formats like XLSX, XLS, ODS, and CSV are commonly used for organizing and analyzing data. XLSX and XLS are associated with Microsoft Excel and support advanced features, CSV is a simpler format, storing data as plain text. Popular applications for working with tables include Microsoft Excel, Google Sheets, and Apple Numbers.

To change XLS to MHT just drop your file onto the upload form, pick the output format and hit the Convert button. After the conversion is finished, download your MHT file instantly. No email needed.

Check our video
XLS

Microsoft Excel Binary File Format

The XLS file format is a binary file format used by Microsoft Excel to store spreadsheet data, including text, numbers, formulas, and formatting. It is supported by various spreadsheet applications like Microsoft Excel, LibreOffice Calc, and Apache OpenOffice, as well as online tools like Google Sheets. The format organizes data into worksheets with rows and columns, supports advanced features like macros, charts, and conditional formatting, and is part of the broader Excel ecosystem, though it has been largely replaced by the XML-based XLSX format.

MHT

MIME Encapsulation of Aggregate HTML

MHT is a file format used to save web pages as a single file, combining HTML, images, CSS, and other resources into one archive for easy storage and sharing. It is supported by web browsers like Internet Explorer and Microsoft Edge, as well as tools like Microsoft Word and specialized MHT viewers or converters. The format uses a MIME structure to embed all web page elements, including text and binary data, into a single file, often encoded in Base64, enabling offline access and preservation of web content.

Add the conversion API to your app

  • Convert over 200 file formats — including PDF, Word, Excel, HTML, images, and many more
  • Load files from disk, URLs, FTP servers, or cloud storage (such as Amazon S3 or Azure)
  • Customize output settings — rotate and reorder pages, add comments, or apply watermarks
How it works

How to convert XLS to MHT

Step 1
Click inside the file drop area to upload XLS file or drag & drop XLS file.
Step 2
Click on Convert button. Your XLS files will be uploaded and converted to MHT result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the MHT file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

You can also convert XLS into many other file formats. Please see the complete list below.

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