Don't take our word for it — turn off your Wi-Fi. Docexp keeps working. A site that runs with the network off cannot be uploading your files anywhere.
Make your file fit what the form is asking for
Exact pixel size, an exact KB range — including the minimum, which is what actually gets uploads rejected and which almost every other tool ignores. Plus 115 free tools to merge, compress, and convert PDFs, photos, and documents. All in your browser; nothing is ever uploaded.
Fix a photo for an upload form →Excel → CSV
Convert a sheet from an Excel workbook (.xlsx/.xls) to CSV.
You need a plain CSV, but what you were sent is a .xlsx — and the tool you're feeding it to won't take an Excel file. This reads the workbook and converts a sheet to CSV, in your browser, without a round trip through Excel or Google Sheets.
How Excel → CSV works
- Enter or paste your text or values.
- It's processed instantly on your device as you type.
- Copy or download the result.
Good to know: One sheet at a time — CSV is a single-sheet format, so a workbook with several tabs has to be converted tab by tab. Formulas are exported as their computed values, not the formulas themselves, since that's all a CSV can hold.