無料オンラインExcel（XLSX）変換ツール

Excel（XLSX）ファイルをブラウザ上でCSV・JSON・Parquet形式に即座に変換。１００万行対応、サーバーへのアップロード不要。

Excel（XLSX）から変換

Excel to CSV

Convert Excel XLSX files to CSV format instantly in your browser.

Excel to JSON

Convert Excel XLSX files to JSON format instantly in your browser.

Excel to Parquet

Convert Excel XLSX files to Apache Parquet format instantly in your browser.

Excel to TSV

Convert Excel XLSX files to TSV (tab-separated) format instantly in your browser.

XLSXに変換

CSV to Excel

Convert CSV files to Excel (XLSX) format instantly in your browser.

JSON to Excel

Convert JSON files to Excel (XLSX) format instantly in your browser.

Parquet to Excel

Convert Apache Parquet files to Excel (XLSX) format instantly in your browser.