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XLS to MHTML converter

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

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We have already processed 5,835,121 files with total size of 9,541,841 Mbytes

About Spreadsheet converter

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

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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.

MHTML

MIME Encapsulation of Aggregate HTML

MHTML (MIME HTML) is a web page archive format that combines HTML, images, scripts, and other resources into a single file for easy storage and sharing. It is supported by web browsers like Microsoft Edge and Internet Explorer, as well as tools such as email clients and web development software. The format uses MIME encoding to embed external resources directly into the file, enabling self-contained web pages with advanced features like CSS, JavaScript, and multimedia elements.

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 MHTML

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 MHTML 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 MHTML 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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