excel: export csv file with japanese character
You need to save the Excel spreadsheet as a Unicode Text file and then open the text file in Notepad and replace all tab characters with a comma.
In Excel, click the Office button in the top, left-hand corner, and then click Save As...
Choose a file name and select Unicode Text from the Save as type drop-down box.
Open the file you just saved in Notepad
Under the Edit menu, select Replace... (or press Ctrl+H)
In the Find what: field, paste a Tab character.
In the Replace with: field, enter a comma.
Click Replace All and then save the text file.