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Counter XLSX → 7 formats
Drop your files here .xlsx .xlsm
Convert to
XLSX is the spreadsheet format Microsoft Excel has used since 2007. Drop your file and choose what it becomes.
- Free
- No sign-up
- Batch conversion
What is XLSX?
XLSX is the spreadsheet format Microsoft Excel has used since 2007. It can hold several sheets, formulas, formatting and charts.
Budgets, reports, lists, accounting and inventory sheets.
Strengths
- Formulas and multiple sheets
- Opens in Google Sheets and LibreOffice
- The business standard
Weaknesses
- Heavy for simple data exchange
- Formatting differs between programs
| Full name | Microsoft Excel (Office Open XML) |
|---|---|
| Created by | Microsoft (ISO/IEC 29500) |
| Year | 2007 |
| Extensions | .xlsx .xlsm |
| MIME | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| Family | Spreadsheet |
Convert to Excel
| Family | Give | → | Get | What you gain |
|---|---|---|---|---|
| CSV | XLSX | formulas and many sheets · separator found by itself | ||
| XLS | XLSX | formulas and many sheets · old Excel file read | ||
| ODS | XLSX | formulas and many sheets · LibreOffice sheet read | ||
| JSON | XLSX | formulas and many sheets · nested fields unfolded | ||
| TSV | XLSX | formulas and many sheets · tab-separated data read |
Frequently asked questions
What is XLSX?
XLSX is the spreadsheet format Microsoft Excel has used since 2007. It can hold several sheets, formulas, formatting and charts.
What is XLSX used for?
Budgets, reports, lists, accounting and inventory sheets.
Which formats can XLSX be converted to?
On this page Excel files convert to PDF, CSV, JSON, HTML, ODS, TSV, XLS. CSV, XLS, ODS, JSON, TSV files can also be turned into Excel.
How long does a conversion take?
Most files convert in a few seconds. Long videos and documents with many pages can take a few minutes; the row shows the progress.