Convert XLSX to CSV — Export Excel Spreadsheets to CSV Files in Batch

Excel spreadsheets store data with formatting, formulas, and multiple sheets — but many systems only accept plain CSV. Database imports, data analysis scripts, CRM uploads, and legacy applications expect flat, delimiter-separated text files. Total Excel Converter exports XLSX files to CSV in batch, giving you control over delimiters, text encoding, and multi-sheet handling. This XLSX to CSV converter:

• Converts XLSX spreadsheets to CSV files with configurable delimiters (comma, semicolon, tab)
• Processes hundreds of XLSX files in one batch run
• Handles multi-sheet workbooks — export all sheets or selected ones
• Supports UTF-8, ANSI, and other text encodings
• Works 100% offline — spreadsheet data never leaves your machine
• Includes a 30-day free trial with full functionality

Download Total Excel Converter and start exporting your Excel data to CSV.

 

XLSX vs CSV: What Is the Difference?

XLSX (Excel Workbook) is the default spreadsheet format since Excel 2007. It stores cell values, formulas, formatting, charts, images, and multiple worksheets in a ZIP-compressed XML package. XLSX files require Excel or a compatible application to open and interpret correctly. They are designed for interactive data work — editing, calculating, and visualizing.

CSV (Comma-Separated Values) is a plain-text format where each row is a line and each field is separated by a delimiter (typically a comma). CSV has no formatting, no formulas, no multiple sheets — just raw data. Every programming language, database, and data tool reads CSV natively. It is the universal data-exchange format.

The trade-off is clear: XLSX preserves presentation, CSV preserves portability. When you need to feed spreadsheet data into a database, analytics pipeline, CRM, ERP, or any non-Excel system, CSV is the required format.

Feature	XLSX	CSV
Formatting	Fonts, colors, borders, conditional formatting	None (plain text)
Formulas	Supported	Values only
Multiple sheets	Yes	One sheet per file
File size	Larger (XML + ZIP)	Smaller (plain text)
Universal readability	Requires Excel or compatible app	Any text editor, any language
Database import	Needs connector or driver	Native support

How to Convert XLSX to CSV

• Step 1. Launch Total Excel Converter. The left panel shows a folder tree for quick navigation.
• Step 2. Browse to the folder with your XLSX files. The file list displays all spreadsheets with names, sizes, and dates. Check individual files or click Check All for batch conversion.
• Step 3. Click CSV in the format toolbar at the top of the window.
• Step 4. In the conversion wizard, choose the destination folder and the delimiter: comma, semicolon, tab, or a custom character. Select the text encoding (UTF-8 recommended for international data).
• Step 5. Configure sheet handling: export all sheets into separate CSV files, or select specific sheets. Set the text qualifier (double quotes by default) for fields containing the delimiter character.
• Step 6. Press Start. Each XLSX file produces one or more CSV files depending on the number of sheets. Original files remain untouched.

Multi-sheet workbooks generate one CSV file per sheet, named with the original file name plus the sheet name suffix — keeping everything organized without manual renaming.

Command-Line Conversion

Total Excel Converter includes a command-line interface for scripted and automated workflows. Convert a single XLSX file to CSV:

ExcelConverter.exe C:\Data\report.xlsx C:\Output\report.csv -cCSV

Convert an entire folder with semicolon delimiter and UTF-8 encoding:

ExcelConverter.exe C:\Data\*.xlsx C:\Output\ -cCSV -Delimiter:Semicolon -Encoding:UTF8

Embed this in a .bat script or Windows Task Scheduler for automated XLSX-to-CSV exports — useful for nightly database feeds, ETL pipelines, and report generation workflows.

Why Use Total Excel Converter?

Configurable delimiters

Choose comma, semicolon, tab, or any custom character as the field separator. Different systems expect different delimiters — European databases typically use semicolons, while US systems default to commas. Total Excel Converter handles both.

Batch processing

Select an entire folder of XLSX files and convert them all to CSV in one run. The program processes thousands of spreadsheets sequentially, creating one CSV per sheet without manual intervention.

Multi-sheet handling

XLSX workbooks often contain multiple sheets. The converter exports each sheet as a separate CSV file with a clear naming convention. You can also select specific sheets to export, skipping sheets you don't need.

Encoding control

Choose UTF-8 for international characters, ANSI for legacy systems, or other encodings as required by your target application. Incorrect encoding causes garbled text in databases — Total Excel Converter prevents this by letting you set it explicitly.

Formula-to-value conversion

CSV cannot store formulas. The converter evaluates all formulas and writes the calculated values to CSV. What you see in Excel is what you get in the CSV output — no #REF! errors, no broken references.

No cloud uploads

All conversion runs locally on your PC. Financial data, customer records, internal reports — nothing is uploaded to external servers. No internet connection required.

Online Converters vs Desktop Converter

Feature	Online Tools	Total Excel Converter
File size limit	10–50 MB	No limit
Batch conversion	One file at a time	Unlimited
Privacy	Files uploaded to cloud	100% offline
Delimiter choice	Comma only	Comma, semicolon, tab, custom
Multi-sheet handling	First sheet only	All sheets or selected
Encoding options	Default only	UTF-8, ANSI, and more
Automation	Manual only	Built-in command line
Pricing	Subscription or ads	One-time $49.90

Windows 7/8/10/11 • 30-day free trial

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Total Excel Converter Customer Reviews 2026

Rate ItRated 4.7/5 based on customer reviews

"We convert around 200 XLSX reports to CSV every week for our PostgreSQL data warehouse. The batch mode and command-line interface let us automate the entire pipeline. Delimiter and encoding settings work exactly as expected — no garbled characters, no quoting issues. Saved us from writing custom Python scripts."

Thomas Eriksen Data Engineer

"Our sales team sends me Excel files with contact lists that need to go into Salesforce. This converter handles multi-sheet workbooks perfectly — each sheet becomes its own CSV, named clearly. UTF-8 encoding means international names come through without problems. Very reliable tool."

Patricia Dunn CRM Administrator

"Solid converter for daily XLSX-to-CSV tasks. Formulas are evaluated correctly, dates export in a consistent format, and the semicolon delimiter option is essential for our European systems. Would be nice to have a preview of the CSV output before converting, but the results have been accurate every time."

Marcus Lehmann Business Analyst

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