filoshi.com / formats / xlsx-to-csv

Convert XLSX to CSV

Preserve formatting and layout natively. Convert your XLSX document into a universally compatible CSV file securely.

NATIVE ENGINE REQUIRED
Desktop App Required
Converting XLSX to CSV requires complex native processing libraries that cannot run purely in the web browser.
Get Filoshi Desktop - $14.90
Windows, macOS, and Linux
Source Format

What is XLSX?

Microsoft Excel Spreadsheet (.xlsx) - XLSX is Microsoft Excel's modern file format for spreadsheets. It supports formulas, charts, pivot tables, and complex data analysis.

Common use: Data analysis, financial modeling, reports, budgets

Output Format

What is CSV?

Comma-Separated Values (.csv) - CSV is a simple format for tabular data where values are separated by commas. It is universally supported and commonly used for data exchange between applications.

Common use: Data export/import, database transfers, data analysis

Frequently Asked Questions

Is converting XLSX to CSV free?+
Converting XLSX to CSV requires the Filoshi desktop app, which is a one-time $14.90 purchase. This gives you unlimited conversions across 3,332+ format pairs with no subscription or per-file fees.
Does converting XLSX to CSV lose quality?+
It depends on the formats involved. If both XLSX and CSV use lossless compression, no quality is lost. If the conversion involves a lossy format, some quality reduction may occur, but Filoshi uses optimized settings to keep quality loss minimal. The conversion runs entirely on your machine, so there are no server-side compression artifacts.
Can I convert XLSX to CSV without uploading my file?+
Absolutely. Filoshi processes everything locally on your computer. Your XLSX files are never uploaded to any server. The desktop app bundles all conversion engines and works completely offline.
How long does it take to convert XLSX to CSV?+
Most conversions complete in seconds. Larger files (like high-resolution video) may take a bit longer depending on your computer's hardware. Since Filoshi runs locally, there is no upload or download wait time, which is significantly faster than online converters.
Can I batch convert multiple XLSX files to CSV?+
Yes, the Filoshi desktop app supports batch conversion. You can drop an entire folder of XLSX files, select CSV as the output format, and convert them all at once. Each file gets its own progress bar.

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