Save Excel sheets as CSV files. Pick one sheet, or get every sheet as its own file. Your file never leaves this device.
DOCX, XLSX, CSV, PPTX, HWP, HWPX
How to use Excel to CSV
What it does
Saves the sheets of an Excel file (.xlsx, .xls) as CSV files. Pick one sheet, or get every sheet as its own file.
Step by step
Drop an Excel file onto the screen, or click to choose one. Once it opens, the sheets are read and the first rows are shown in a table.
Under “Sheet”, pick the sheet to save. The first sheet that has values is already picked. With two or more sheets, you can also pick “All sheets (one file each)”.
Under “Delimiter”, pick comma, semicolon or tab. It starts on comma.
“UTF-8 BOM” starts on. While it is on, Excel opens the CSV with Korean text intact.
Click “Convert to CSV”, then “Save”. With several sheets, “Save all” downloads them one after another.
Good to know
The file name is the original name with “-converted” added. With all sheets, the sheet name is added instead. The extension is .csv.
Formulas are exported as the last calculated value saved in the file. They are not recalculated. Dates and numbers become text the way Excel shows them.
Merged cells, colors, charts and pictures are not kept. Hidden sheets are listed too.
If you pick an empty sheet, no CSV is made and you are told so. With all sheets, empty ones are skipped.
The table shows only the first 50 rows. The saved file has every row.
The file is processed in your browser and is not uploaded to a server.
Frequently asked questions
Korean text looks broken when I open the CSV in Excel.
Turn “UTF-8 BOM” on and convert again. The BOM mark at the start of the file tells Excel to read it as UTF-8. In programs that show a stray first character, turn the BOM off instead.
My file has several sheets. Can I convert them at once?
Under “Sheet”, pick “All sheets (one file each)”. One CSV file is made for each sheet that has values.
What comes out for cells with formulas?
The calculated value saved in the file, not the formula. It is the value Excel last saved, so a change made after the last save may not be included.