XLSX (Office Open XML スプレッドシート) は、 Excel スプレッドシートの最新のファイル形式です。 XLSX ファイルには、表形式のデータ、数式、および書式設定が保存されます。 XLS と比較して、データ統合の向上、セキュリティの強化、および大規模なデータセットのサポートが提供されます。
一般的な用途
Financial spreadsheets
Data analysis
Business reporting
XLSX 変換に関するよくある質問
What is a XLSX file?
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What is XLSX?
How do I convert XLSX files?
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Simply upload your file using our drag-and-drop interface or click to browse. Select your desired output format, then click Convert. Your converted file will be ready for download within seconds.
Is the conversion free?
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Yes, our converter is completely free for basic use. You can convert files without creating an account. Premium features are available for users who need batch conversion or advanced options.
Will my file quality be preserved during conversion?
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We strive to preserve quality as accurately as possible during conversion. The output quality depends on the source file and target format compatibility.
Can I convert to PDF?
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Yes, PDF conversion is one of our most popular features. PDF format preserves your content layout exactly as intended, making it ideal for sharing and archiving.
What is the maximum file size?
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Free users can convert files up to 100MB. This is sufficient for most files. Premium users have access to larger file limits.
Do I need special software?
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No, you don't need any special software installed. Our converter works entirely in your browser and handles conversion server-side.
Are my files kept private and secure?
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Absolutely. Your files are processed securely and automatically deleted from our servers after conversion. We don't read, store, or share your file contents. All transfers use encrypted HTTPS connections.