Format comparison
TXT vs XLSX
How do TXT and XLSXcompare? Here's everything you need to know to choose the right format — and how to convert between them.
.txt
Full guide →Plain Text File
TXT is the simplest document format — pure text with no formatting. It's universally compatible, lightweight, and readable by every operating system and text editor in existence.
.xlsx
Full guide →Office Open XML Spreadsheet
XLSX is the default format for Microsoft Excel spreadsheets. It supports complex formulas, charts, pivot tables, and large datasets. It's the industry standard for data analysis and financial modeling.
| Specification | TXT | XLSX |
|---|---|---|
| Full name | Plain Text File | Office Open XML Spreadsheet |
| Extension | .txt | .xlsx |
| MIME type | text/plain | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| Category | Document | Document |
| Developer | N/A (universal standard) | Microsoft |
| Year introduced | 1960s | 2007 |
TXT advantages
- Universal compatibility — works everywhere
- Tiny file sizes
- No formatting issues or version problems
- Human-readable and machine-parseable
TXT limitations
- No formatting, images, or styling
- No structure beyond line breaks
- No metadata or document properties
- Not suitable for professional documents
XLSX advantages
- Powerful formula and calculation engine
- Supports charts, pivot tables, and macros
- Industry standard for business data
- Compatible with Google Sheets and LibreOffice
XLSX limitations
- Complex format for simple data
- Can be slow with very large datasets
- Formatting issues between applications
- Requires office software for full features
Which should you use?
TXT and XLSX serve different purposes. TXT is ideal for configuration files and logs, while XLSX excels at financial reports and budgets.
Best uses for TXT
Configuration files and logs
Quick notes and drafts
Data exchange between systems
README files and documentation
Best uses for XLSX
Financial reports and budgets
Data analysis and modeling
Inventory and project tracking
Survey results and data collection
Convert between TXT and XLSX
Need to switch formats? Convert for free with SquishConvert.