Excel to CSV
Excel (.xlsx / .xls) を CSV に convert
Drop an Excel file
🔒 Files never leave your device
使い方
- 1Upload Excel file
Drop or select your .xlsx or .xls workbook.
- 2Convert
Each sheet is exported as its own CSV.
- 3Download
Get a single CSV or a ZIP for multi-sheet workbooks.
Excel to CSV について
Excel スプレッドシートを CSV に変換。sheet と separator を選択可能。すべて browser で。
仕事、勉強、個人利用 — この tool は必要なだけ無料で使えます。Watermark なし、sign-up なし、documents 内の広告もなし。
よくある質問
Are formulas preserved?
Formulas are replaced with their computed values in the CSV output.
続きを読む
XLS to XLSX: why your old Excel files break in modern tools (and how to fix them)
You inherit a shared drive full of .xls files from 2008. Half of them refuse to open in Excel 365 or Google Sheets. Here's what changed, and how to convert them without losing formulas.
CSV to JSON: nested arrays, typed fields, and mapping real-world data
Converting a flat CSV to a flat JSON array is trivial. Doing it so an API actually accepts the result - with typed numbers, nested objects, and normalized keys - takes a bit more thought.
CSV vs JSON vs Excel: which data format should you use when?
Three formats, three use cases, endless confusion. A practical guide to picking the right one for spreadsheets, APIs, and everything in between.
How to convert Excel to PDF the right way (no cut-off columns)
Excel to PDF sounds simple until you get a PDF where a wide table's last three columns landed on their own separate page. Here's how to actually control the layout.