XLSX to RTF Converter

Transform XLSX into RTF — free online conversion

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Universal Compatibility

RTF is one of the most widely supported document formats — your XLSX data becomes accessible in virtually any word processor.

Cloud-Based Engine

Processing runs on Convertio servers, so your machine is not burdened. Even spreadsheets with many rows convert quickly.

Multiple Files at Once

Upload several XLSX files in a single session and convert them all to RTF — efficient batch processing without extra steps.

How to convert XLSX to RTF

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose rtf or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your rtf file right afterwards

About formats

XLSX is the default spreadsheet format for Microsoft Excel since Office 2007, based on the Office Open XML (OOXML) standard published as ECMA-376 and adopted as ISO/IEC 29500. An XLSX file is a ZIP archive containing XML documents that describe workbook structure, sheet data, styles, shared strings, formulas, charts, pivot tables, and relationships between components. Each worksheet is stored as a separate XML part where cells are organized by row and column references with typed values and style indices. The XML foundation enables programmatic spreadsheet creation and manipulation using libraries like openpyxl (Python), Apache POI (Java), and ClosedXML (.NET) without requiring Excel. XLSX dramatically expanded capacity compared to XLS: over 1 million rows and 16,384 columns per sheet, enabling use cases previously impossible in the binary format. One advantage is openness and cross-platform support — the documented OOXML specification enables implementation by LibreOffice Calc, Google Sheets, Apple Numbers, and numerous specialized tools. Built-in ZIP compression is another practical strength: XLSX files are typically 50-75% smaller than equivalent XLS files, and the modular XML structure improves data recovery when files are partially corrupted. The format supports modern Excel features including structured tables, slicers, sparklines, Power Query connections, and real-time co-authoring. XLSX has become the standard format for spreadsheet data interchange across business, scientific, and government domains.
Developer: Microsoft
Initial release: January 30, 2007
RTF (Rich Text Format) is a document interchange format developed by Microsoft and first published in 1987 with Word 3.0. The format encodes document content and formatting as plain ASCII text using control words (backslash-prefixed commands) and groups (curly-brace-delimited sections) that describe fonts, character formatting, paragraph layout, tables, images, and page setup. Because RTF is fundamentally a text format with no binary components, documents pass cleanly through any text channel — email systems, clipboard operations, and cross-platform transfers — without corruption. Microsoft designed RTF explicitly as a cross-application and cross-platform exchange format, and it achieved broad adoption: virtually every word processor, text editor, and document tool on every operating system has supported RTF reading and writing for decades. One advantage is exceptional cross-platform compatibility — an RTF document created on any application renders with consistent formatting on any other, making it the most reliable format for text exchange between incompatible systems. The text-based structure provides another benefit: RTF files resist corruption, are trivially generated by programs (requiring only string concatenation), and can be debugged by reading the raw markup in a text editor. While RTF lacks modern features like tracked changes and advanced layout controls, and Microsoft declared the specification frozen at version 1.9.1 in 2008, the format persists as a dependable interchange option where DOCX compatibility cannot be assumed.
Developer: Microsoft
Initial release: 1987

Frequently Asked Questions

Why convert XLSX to RTF?

RTF is readable by nearly every word processor ever made — it offers maximum compatibility when sharing formatted tabular data.

What software reads RTF?

Microsoft Word, LibreOffice Writer, WordPad, Google Docs, TextEdit on macOS, and countless other editors handle RTF files well.

Does formatting carry over?

Table structure, text styles, and basic cell formatting are preserved in the RTF output. Advanced Excel features are simplified.

Is this service free?

Yes — Convertio lets you convert XLSX to RTF at no cost. Premium plans offer expanded capacity for frequent users.

Can I convert on my phone?

Convertio is fully browser-based, so it works on smartphones and tablets just as well as on desktop computers.

Is my data safe?

Uploaded files are removed right after conversion. Output files are automatically deleted within 24 hours — nothing is stored long-term.

XLSX to RTF Quality Rating

4.3 (559 votes)
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