Paste your tab-delimited export for a single class. The first non-empty line should contain the class header (e.g., "9.4 MIT" or "Brown 왕기초1"). Columns like Korean Name and Phone should be in the first two columns as in your export.
Add Student
Add All Students
Paste the full list including class headers (e.g., "NewYork 기초2 ...") and the table rows. I'll parse School, Grade, Korean Name, English Name, and Phone, and assign the class from each header.