Drop file here. 150 MB maximum file size.
An XLTX file is a model created by Microsoft Excel, used to create spreadsheets. Contains the default settings and layout information used to create .XLSX files. XLTX files can be used to create spreadsheets with the same formatting and properties.
An MHTML file is an archive containing all the contents of a web page. It stores the HTML of the web page, as well as related web page resources, which may include CSS, JavaScript, images and audio files. MHTML files are used primarily by web developers to save the current state of files; a web page for archiving purposes.
Access powerful and secure free online XLTX tools to convert, view, edit, merge, split, and compare XLTX files โ all without installing any software. Our tools support the .XLTX (Excel Open XML Spreadsheet Template) file extension and run smoothly in any modern browser.
Select a tool below to explore features and manage your XLTX files directly from your device with ease.
Chose or drag & drop your XLTX file, click Convert to MHTML, and download the MHTML file. No registration needed.
Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.
Yes, our converter retains layout, fonts, and images as accurately as possible.
Fileproinfo converter engine works fast. You can convert XLTX to MHTML in a few seconds to couple of minutes for large size files with complex structure.
FileProInfo support manay file formats that allow you to convert XLTX to 100s of file formats, without any limit, registration and downloading, 100% free and online XLTX converter.
All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.
This tool and page updated at: 12-Apr-2025
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Listed file converters are from the wide range of online file converter.
These are the most polular file/document converters based on the user's review and usage on the FileProInfo.