Help & Support

CSV Encoding Importer — a Google Sheets™ add-on

Getting started

Open any Google Sheets spreadsheet, then go to Extensions → CSV Encoding Importer and choose Import CSV or Export CSV. A sidebar opens on the right.

Import a CSV file

  1. Open the sidebar (Extensions → CSV Encoding Importer → Import CSV).
  2. Drag a CSV file onto the drop zone, or click to choose one.
  3. Check the preview. The encoding and delimiter are detected automatically. If the text looks garbled, pick a different encoding from the dropdown — the preview updates instantly.
  4. Choose where to import: a new sheet, replace the current sheet, or insert at the selected cell.
  5. Click Import.

Export a sheet as CSV

  1. Open the sidebar (Extensions → CSV Encoding Importer → Export CSV).
  2. Set the file name, choose an encoding and a delimiter. For UTF-8/UTF-16 you can include a BOM for Excel compatibility.
  3. Click Export. The CSV downloads through your browser.

Frequently asked questions

The imported text looks garbled (broken characters).

The file was read with the wrong encoding. Open the encoding dropdown and pick another option (for Korean CSV from Excel try EUC-KR; for Japanese try Shift_JIS). The preview shows the result before you import — cells with broken characters are highlighted in red.

Some characters turned into “?” when I exported.

The encoding you exported to cannot represent those characters (for example, emoji cannot be written in EUC-KR). Export as UTF-8 to keep every character.

My export opens with broken Korean/Japanese text in Excel.

Enable Include BOM when exporting as UTF-8. The BOM tells Excel the file is UTF-8 so characters display correctly.

Where did my exported file go?

It goes to your browser’s default download location. If you want to choose the folder each time, turn on “Ask where to save each file before downloading” in your browser settings.

Is my data private?

Yes. All processing happens in your browser, and the add-on can only access the spreadsheet it is opened in. Nothing is sent to any external server. See the Privacy Policy.

The interface is in the wrong language.

The add-on follows your Google account language, with a fallback to English. Change your Google account language and reopen the sheet.

Contact

Still need help? Email qnfpdlr124@gmail.com and include the encoding you were using and, if possible, a small sample file.