XLSX vs PPT
How do XLSX and PPTcompare? Here's everything you need to know to choose the right format — and how to convert between them.
.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.
.ppt
Full guide →Microsoft PowerPoint Presentation (Legacy)
PPT is the legacy binary format for Microsoft PowerPoint presentations. While replaced by PPTX, many older presentation files and templates still use this format.
| Specification | XLSX | PPT |
|---|---|---|
| Full name | Office Open XML Spreadsheet | Microsoft PowerPoint Presentation (Legacy) |
| Extension | .xlsx | .ppt |
| MIME type | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet | application/vnd.ms-powerpoint |
| Category | Document | Document |
| Developer | Microsoft | Microsoft |
| Year introduced | 2007 | 1987 |
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
PPT advantages
- Compatible with older PowerPoint versions
- Widely recognized
- Still supported by modern software
- Simple for basic presentations
PPT limitations
- Larger files than PPTX
- Binary format — harder to recover
- Missing modern features
- Being phased out
Which should you use?
XLSX and PPT serve different purposes. XLSX is ideal for financial reports and budgets, while PPT excels at opening legacy presentations.
Best uses for XLSX
Best uses for PPT
Convert between XLSX and PPT
Need to switch formats? Convert for free with SquishConvert.