Secure server processing

Convert Excel XLSX to CSV

Extract Excel workbook data to standard RFC 4180 CSV format.

Selecting a file does not upload it. Upload and convert sends it to temporary server storage. One file at a time; 25 MiB maximum.

Drop files here or click to upload

Supported formats: .xlsx

Choose Files

Max 25 MB per file•Up to 1 files

Uploaded only after you choose Upload and convert; temporary server processing

How it works

Select your XLSX workbook.
Upload and convert to extract sheet data.
Download your standard CSV file.

The isolated worker reads the active sheet from your XLSX file and outputs clean, comma-separated values encoded in UTF-8.

Supported documents and limitations

XLSX only. Macros, charts, and multiple sheets are not included in the single CSV stream. Up to 50,000 rows are exported.

Temporary server processing

Your file is uploaded only when you choose to convert. An isolated worker processes it without network access. Uploaded files expire after one hour; completed outputs expire one hour after completion. Failed, cancelled or deleted jobs become eligible for immediate cleanup. Service outages can delay physical deletion; a previously issued download link can remain valid briefly. Clear files to request early deletion. Downloads saved on your device remain there.

PDF processing is limited to 200 pages; HTML and reverse conversions have the stricter limits listed above. Complex files may reach time, memory or scratch limits sooner. No malware-free, perfect-fidelity or certified-accessibility claim is made.