XLSX
Spreadsheet
Microsoft Excel spreadsheet format
Advantages
- Industry standard
- Rich features
- Large data support
Disadvantages
- Requires Excel
- Complex format
Best for
- Business spreadsheets
- Data analysis
- Financial reports
XLSX vs XLS
Compare XLSX and XLS formats to find the best option for your needs.
XLS
Spreadsheet
Legacy Microsoft Excel format
Advantages
- Wide compatibility
- Rich features
- Familiar format
Disadvantages
- Proprietary
- Larger than XLSX
- Row limits
Best for
- Older Excel versions
- Legacy systems
Side-by-side comparison
| Feature | XLSX | XLS |
|---|---|---|
| Category | Spreadsheet | Spreadsheet |
| File size | Small | Large |
| Compatibility | Widely supported | Excellent |
| Quality | Excellent | Good |
Questions and answers
What is the difference between XLSX and XLS?
XLSX: Microsoft Excel spreadsheet format. XLS: Legacy Microsoft Excel format.
Which format should I choose: XLSX or XLS?
It depends on the job. XLSX is the better pick for: Business spreadsheets, Data analysis, and Financial reports. XLS is the better pick for: Older Excel versions and Legacy systems.
Can I convert XLSX to XLS?
Yes. Open the XLSX to XLS converter, drop the file and download the result.
Is XLSX better than XLS?
Not in general. XLSX is stronger at: Business spreadsheets, Data analysis, and Financial reports. XLS is stronger at: Older Excel versions and Legacy systems.