Convert Excel to CSV
Convert multiple Excel files (.xlsx / .xls / .xlsm) and sheets into CSV format. Supports sheet name filtering and UTF-8 encoding.
Batch Convert Excel to CSV Without Opening Files
Convert Excel spreadsheets into comma-delimited CSV files without opening them. Automatically expand multiple workbooks and worksheets, filter the sheets you need, and download them as individual CSV files or a single ZIP archive. Output preserves displayed date and leading-zero formats while processing everything locally in your browser with no server uploads.
Select or Drop Excel Files
Drag and drop your Excel files onto the page, or click "Select File" to add them.
Select multiple workbooks at once to expand all contained worksheets into the list.
Preview & Filter by Sheet Name
The first rows of each worksheet are displayed in tile cards so you can inspect the data before conversion.
Enter a keyword in "Filter by Sheet Name" to narrow down target sheets, or remove individual sheets you do not need.
Convert to CSV
Click "Convert to CSV" to convert all sheets currently shown in the list.
A single sheet downloads directly as a CSV file, while multiple sheets are bundled into a single ZIP archive.
Batch Conversion of Multiple Files and Sheets
Convert multiple Excel workbooks and all worksheets inside a workbook into separate CSV files in one operation, eliminating the need to save sheets one by one in Excel.
Sheet Name Filtering
Type a keyword into the filter box to extract and download only matching worksheets from multi-sheet workbooks.
Preserves Displayed Formats & Strips Number Commas
Dates, zero-padded numbers, and percentages are exported as displayed in Excel, while thousand-separator commas in numbers are removed for clean data imports.
UTF-8 with BOM Output & Automatic Quote Escaping
Files are exported in UTF-8 with BOM (CRLF line breaks) to prevent garbled characters when opened in Excel or text editors, with automatic double-quote escaping for cells containing commas or line breaks.
Extracts Calculated Formula & HYPERLINK Values
Cells containing formulas output their calculated results, and HYPERLINK cells output their display text or target URL.
100% Client-Side Browser Processing
File parsing, CSV conversion, and ZIP archiving run entirely inside your browser. Your files are never uploaded to an external server.
Exporting Multi-Sheet Workbooks into Separate CSVs
Split an Excel workbook containing multiple worksheets into individual CSV files at once, or filter specific sheet names to export.
Preparing Comma-Delimited CSVs for System & Database Imports
Generate standard comma-separated CSV files that retain leading zeros and date formats while stripping thousand separators from numeric values.
Batch Converting Files Without Python or PowerShell Scripts
Convert multiple Excel files in bulk by dragging and dropping them into your browser without writing command-line scripts, VBA macros, or installing software.
Previewing & Extracting CSVs Without Opening Excel
Inspect worksheet contents and export CSV files on PC, Mac, iPad, or smartphones even when Microsoft Excel is not installed.
Are my Excel files uploaded or saved on a server?
Will special characters or non-English text become garbled?
How are dates, leading zeros, and thousand-separator commas handled?
How are cells containing commas, line breaks, or double quotes exported?
Which Excel formats are supported, and how are output files named?
How are cells containing formulas or HYPERLINK functions output?
Instead of opening workbooks one by one and saving each worksheet manually in Excel, drag and drop multiple Excel files to convert all sheets into CSV format at once. Filter target sheets by name, keep date and leading-zero formats intact, and process everything locally in your browser.
Add your Excel files above to start batch converting to CSV.