XLSX to HTML Converter
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What is a XLSX file?
XLSX is the default spreadsheet format used by Microsoft Excel since Office 2007. It is based on the Open XML standard and stores data in cells organized by rows and columns.
XLSX files support formulas, charts, formatting, and large data sets. They are widely used for financial modeling, data analysis, and record keeping across industries.
How to open XLSX files
XLSX files can be opened with Microsoft Excel, Google Sheets, LibreOffice Calc, and many other spreadsheet applications. They are the standard format for spreadsheets today.
You can convert XLSX to PDF, CSV, or XLS using AnyConv or via built-in export options in Excel and other tools.
Key facts about XLSX
- Full name: Microsoft Excel Open XML Spreadsheet
- Extension: .xlsx
- MIME type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
- Developed by: Microsoft
- Initial release: 2007
Useful links and resources
What is a HTML file?
HTML (Hypertext Markup Language) is the standard language for creating web pages and web applications. It uses tags to structure text, images, multimedia, and interactive elements in a browser-readable format.
HTML files form the backbone of websites and are universally supported by all web browsers. Combined with CSS and JavaScript, HTML enables dynamic and responsive web design.
How to open HTML files
HTML files are opened directly in web browsers. To view or edit the code, use any text or code editor such as Notepad++, Atom, or Visual Studio Code.
You can convert HTML to formats like PDF or EPUB using AnyConv or online conversion tools.
Key facts about HTML
- Full name: Hypertext Markup Language File
- Extension: .html
- MIME type: text/html
- Developed by: W3C
- Initial release: 1991
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❓ Frequently Asked Questions
- Do I need to register to convert XLSX files?Not at all! You can convert XLSX to HTML without signing up or installing anything.
- Is it safe to convert XLSX to HTML on AnyConv?Absolutely. All XLSX and HTML files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
- Will the quality change after converting XLSX to HTML?We do our best to preserve the original quality during XLSX to HTML conversion. The result is accurate and clean.
- How long does it take to convert XLSX to HTML?Most conversions from XLSX to HTML take just a few seconds — even for larger files.
- Can I upload more than one XLSX file?Yes, batch conversion is supported. You can convert multiple XLSX files to HTML at once — fast and easy.
- What browsers support XLSX to HTML conversion?All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting XLSX to HTML on any platform.