CSV to XLSX 変換 のクイックスタート
最初に成功させるために必要なすべて:何を入力し、どのオプションが重要で、結果をどう読むか。
使い方
- ツールを開き、左の入力欄にデータを貼り付けます。
- タスクに本当に必要なオプションだけを設定します。ほとんどの場合、既定値で正しく動作します。
- 右の出力欄で結果を確認します。入力に応じてリアルタイムに更新されます。
- 「コピー」で結果を取得するか、「ダウンロード」でファイルとして保存します。
例
Paste CSV (or TSV / semicolon / pipe text) — the workbook is built locally with SheetJS; nothing is uploaded.
入力
name,qty,price widget,3,"12,50 €" gadget,7,9.99
出力 — 検索結果
<p><b>3 rows × 3 columns</b> → converted.xlsx (15.8 KB, from 0.0 KB of text (comma-separated, auto-detected)).</p><p style="opacity:.75">Every text cell is stored as literal text — a leading “=”, “+” or “@” cannot turn into a formula. Numbers stay exactly as pasted (no re-rounding, decimal commas are safe). Excel may show its usual “number stored as text” note — that is the fidelity choice working. Built locally with SheetJS — the text was never uploaded to a server.</p>
実行
説明
Paste CSV, TSV, semicolon or pipe text and download a real .xlsx — quotes, CRLF and UTF-8 handled, delimiters auto-sniffed (TAB ; , |) or set by hand, decimal commas preserved, nothing uploaded.
関連ツール
Excel to JSON 変換Convert an .xlsx, .xlsm or .xls workbook to JSON in your browser — a lossless table dump of the first sheet (header row included), a live preview of every sheet, correct UTF-8, and the file is never uploaded.Excel to CSV 変換Convert an .xlsx, .xlsm or .xls workbook to RFC 4180 CSV with correct UTF-8 — commas and quotes are escaped by doubling, every sheet is previewed, no upload and no sign-up.JSON to XLSX 変換Paste a JSON array of objects or rows and get a real .xlsx — header from the key union, numbers stay numeric, mixed shapes are refused not guessed, all in your browser.Base64 エンコードEncode text, JSON, URLs or files to Base64, standard or URL-safe.URL エンコードPercent-encode URLs or single query components.Base64 デコードDecode Base64 (standard or URL-safe) back to text or bytes.