A blank CSV containing only the columns this tool reads. Keep the header names and the upload maps them automatically. Data is processed in your browser and never sent to a server.
| Column | Meaning | Type | Required |
|---|---|---|---|
user_id | — | text | Optional |
target | — | text | Optional |
invite_d1 | — | text | Optional |
invite_d7 | — | text | Optional |
share_d7 | — | text | Optional |
YYYY-MM-DD for every date. Mixed formats break period comparisons.