CONVERT XLSX → TXT (XLSX to TXT)
Fast, secure XLSX to TXT conversion. No registration required.
📈 Target Minimum File Size (Guaranteed ≥ KB)
Lossless JPEG Q100 + standard COM segment padding for government & exam portals
Tap to choose your file Drop files here or click to browse
Automatic format identification and lossless transcoding across 201+ formats.
Convert to:
Detecting available formats...
Target Max File Size:
Uploading...
Processing your file...
READY!
Download File
Your file is converted & verified! Unlock instant download:
One-time secure payment via Stripe (Apple Pay, Google Pay, Card). Zero recurring subscription.
🛡️ Verification Audit
- ✓
- ✓ sRGB Color Fidelity
- ✓
Continue with this converted file (0s zero re-upload):
Batch Conversion Ready!
Your file is converted & verified! Unlock instant download:
One-time secure payment via Stripe (Apple Pay, Google Pay, Card). Zero recurring subscription.
Need to convert larger files or bigger batches right now?
Unlock up to 1 GB & priority cloud queue with 1-click Stripe checkout (Apple Pay, Google Pay, Card):
Report
Studio Panel
Ghostscript + QPDFHOW TO CONVERT XLSX → TXT
Start the job
Upload the XLSX; the pipeline auto-detects format and plans the conversion.
Transform to TXT
The appropriate engine reads the content, preserves key attributes and writes the TXT container.
Save the result
Click to download. The conversion runs in the background so you can queue additional files in parallel.
XLSX is a ZIP archive containing XML files, binary parts for shared strings, cell styles, theme data, and optionally embedded images or VBA macros. When you open an XLSX in any text editor you get raw XML, not readable data. Converting to TXT strips away every non-data layer — column types, formulas, number formats, conditional formatting, merged cells, charts, hyperlinks — and writes each row as a plain line of text with cell values separated by a delimiter, almost always a tab character or a space. The result is a flat, encoding-agnostic sequence of UTF-8 characters that any tool on any platform can read without a spreadsheet engine. This conversion is most useful when the destination system is a Unix pipeline, a legacy import filter, a command-line parser, a log-aggregation tool, or any environment where Excel's binary and XML overhead is a liability rather than an asset. It is also the fastest way to make spreadsheet data diffable in git or greppable with standard Unix text utilities.
Why convert XLSX to TXT
A real-world user reaches for this conversion when a downstream script, database loader, or legacy system expects plain delimited text and has no XLSX parser available. Shell tools like awk, cut, sort, and uniq operate on text streams, not spreadsheet objects. ETL pipelines running on minimal server environments often lack libxlsx or openpyxl. Version-controlling a spreadsheet in git produces binary diffs that are meaningless; converting to TXT makes every row change visible as a plain-text line diff. Log analysis platforms and SIEM tools that ingest data via syslog or file watchers require flat text, not ZIP-wrapped XML.
XLSX vs TXT — Technical specifications
Side-by-side comparison of the technical details.
XLSX
- MIME type
- application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
- Container
- ZIP (Office Open XML)
- Max rows
- 1,048,576
- Max columns
- 16,384
- Released in
- Microsoft Office 2007
- Variants
- .xlsx, .xlsm (macros), .xlsb (binary)
- MIME Type
- application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
- Extension
- .xlsx
- Category
- Spreadsheets & Data
- Full Name
- Excel Spreadsheet
- Conversion Engine
- LIBREOFFICE
TXT
- MIME type
- text/plain
- MIME Type
- text/plain
- Extension
- .txt
- Category
- Documents & Text
- Full Name
- Plain Text
- Conversion Engine
- LIBREOFFICE
- Common encodings
- UTF-8, UTF-16, ASCII, ISO-8859-1, Windows-1252
- Line endings
- LF (Unix), CRLF (Windows), CR (classic Mac)
- Max file size
- Limited only by filesystem (no format-level limit)
- Structure
- None — flat sequence of characters
| Specification | XLSX | TXT |
|---|---|---|
| MIME type | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet | text/plain |
| Container | ZIP (Office Open XML) | — |
| Max rows | 1,048,576 | — |
| Max columns | 16,384 | — |
| Released in | Microsoft Office 2007 | — |
| Variants | .xlsx, .xlsm (macros), .xlsb (binary) | — |
| MIME Type | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet | text/plain |
| Extension | .xlsx | .txt |
| Category | Spreadsheets & Data | Documents & Text |
| Full Name | Excel Spreadsheet | Plain Text |
| Conversion Engine | LIBREOFFICE | LIBREOFFICE |
| Common encodings | — | UTF-8, UTF-16, ASCII, ISO-8859-1, Windows-1252 |
| Line endings | — | LF (Unix), CRLF (Windows), CR (classic Mac) |
| Max file size | — | Limited only by filesystem (no format-level limit) |
| Structure | — | None — flat sequence of characters |
XLSX vs TXT — Strengths and limitations
What each format does best, and where it falls short.
XLSX Strengths
- Much smaller than legacy .xls files thanks to ZIP + XML.
- Human-readable structure — easy to extract data programmatically.
- Supports macros (as .xlsm variant), charts, pivot tables, conditional formatting.
- Universal support: Excel, LibreOffice, Google Sheets, Numbers, pandas.
- ISO/IEC 29500 standardized.
Limitations
- Macros in .xlsm are a common malware vector — disabled by default in Office.
- 1M-row limit is a cultural problem — people put too much data in Excel.
- Subtle formula differences between Excel, LibreOffice, and Sheets.
TXT Strengths
- Universally readable — every operating system, every editor, every programming language.
- Zero metadata overhead: the file size equals the character count (for ASCII).
- Safe to diff, grep, version-control, and pipe through command-line tools.
- Immune to format obsolescence: a text file from 1970 still opens today.
- Tiny footprint for structured data like logs or configuration.
Limitations
- No styling, images, or embedded structure — just characters.
- Character encoding ambiguity (ISO-8859-1 vs UTF-8 vs Windows-1252) causes "mojibake".
- Line-ending differences between OSes still cause subtle bugs today.
Quality & Compatibility
What survives: the literal text and numeric content of each cell, row structure expressed as lines, and basic column separation. What is permanently lost: all formula expressions (only the last calculated value is exported, not the formula itself), cell data types (a date stored as a serial number becomes its numeric value unless the exporter applies date formatting, which TXT has no standard way to encode), number formats such as currency symbols and thousands separators, merged cell spans, multiple sheets (a single output file cannot represent more than one sheet without custom delimiters or file splitting), styles, embedded images, and named ranges. Character encoding defaults to UTF-8 in modern exporters but older tooling may produce Windows-1252, which corrupts non-ASCII characters silently. There is no standard TXT delimiter specification, so tab-separated output from one tool may be interpreted as space-separated by another.
Tips for Best Results
- Check which sheet gets exported before converting — XLSX files often contain multiple sheets, and most converters export only the active or first sheet by default, silently discarding the rest.
- If any cell contains a tab character in its text (common in cells that hold free-form notes pasted from another app), tab-delimited TXT output will break column alignment on those rows — inspect the source file for embedded tabs before converting.
- Date cells in XLSX store values as floating-point serial numbers internally; the TXT output will contain a human-readable date string only if the exporter applies the cell's number format during conversion, which not all tools do — verify a sample date cell in the output before treating the file as ready for import.
Frequently Asked Questions
Yes. The free tier accepts files up to 25 MB without registration, email capture or watermarks; paid plans go up to 2 GB. Paid plans raise the size cap, enable batch conversions and provide a REST API for automation, but nothing on the free tier is quality-limited — the output is exactly the same as on any paid plan.
Uploads run over HTTPS, files are processed in isolated containers, and both the source XLSX and the TXT output are auto-deleted within two hours. No account is required, file contents are never logged, and KaijuConverter does not use uploads for AI training. The paid plan adds a signable data-processing agreement for regulated workflows.
Most files finish in well under a minute. Small images and documents are typically ready in a few seconds; large video or audio files scale roughly with duration. Upload speed from your network is usually the dominant factor, not server time.
Excel Spreadsheet
Source formatXLSX is the modern Microsoft Excel format based on Open XML. It is the industry standard for spreadsheets, supporting formulas, charts, pivot tables, and conditional formatting.
Plain Text
Target formatTXT files contain unformatted plain text with no styling, images, or layout information. They are universally readable by any device and operating system, making them the simplest document format.
Common Use Cases
Share across platforms
Send TXT files to anyone without worrying about whether they have the right software for XLSX.
Embed in documents
Drop TXT output into Word, Google Docs, PowerPoint, Notion or a website without conversion warnings.
Optimize size
TXT often produces smaller files than XLSX for web, email and storage.
Archive & future-proof
Store in a widely-supported format that will still open on future operating systems without legacy plugins.
XLSX vs TXT — Typical file sizes
Approximate file sizes for common scenarios.
- Small budget spreadsheet 20–80 KB
- Financial model with charts 1–10 MB
- Large dataset (100k rows) 10–50 MB
- Short note < 1 KB
- README file 2–20 KB
- Full novel (~90,000 words) 500 KB – 1 MB
Sensitive Documents, Scanned OCR, or 500+ Pages?
For legally sensitive archives that must never leave your local network, or multi-hundred page scanned PDFs needing optical character recognition, local document workstations ensure full compliance.
One-time payment with zero recurring commitment: convert files up to 1 GB, OCR, PDF/A, and .ZIP batches for 24 hours.
Full 7 days of unlimited conversions, up to 2 GB per file, 100% ad-free with zero subscription.
High-throughput enterprise pipeline for files up to 2,048 MB, 50-file batches, ISO PDF/A, and priority processing.
Offline conversion for multi-hundred page contracts, spreadsheets, and local optical extraction.
High-accuracy legal OCR, certified PDF/A archiving, and compliant document redaction.
Related comparisons
See these formats side by side to understand which fits your use case best.
Related Guides
XLSX Format: Inside Microsoft Excel's Open XML Spreadsheet
Complete guide to XLSX format: ZIP+XML structure, shared string table, date serial numbers, cell styles, formula caching, openpyxl programming, pandas...
Read guide →XLSX Format: The Complete Guide to Excel Open XML Spreadsheets
Everything about XLSX: ZIP container structure, workbook XML, cell references, formulas, pivot tables, macros vs. XLSM, and how to convert XLSX files.
Read guide →How to Convert Excel to PDF
Convert Microsoft Excel XLSX spreadsheets to PDF for sharing, printing, and reporting. Preserves formatting, charts, and tables.
Read guide →
</>
Embed this tool on your website or blog (Free)
▼
Add this converter to your site in 10 seconds
Help your visitors convert files directly from your documentation, CMS, or blog. Copy the lightweight HTML snippet below — zero dependencies, responsive, and 100% free.
Secure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 60 minutes. We never read, share, or store your data.