Import member data from an Excel (.xlsx) or CSV file into the Firestore members collection.
Supported formats: Excel (.xlsx, .xls) and CSV (.csv).
The first row must be a header row. Column names are flexible — you'll map them in the next step.
Expected columns (any order, any header name):
First Name · Last Name · Email · Phone · Street · City · State · ZIP ·
Join Date · Oath Date · Status · Notes · Certifications
Certifications: Enter multiple values separated by commas in one cell. Example: CERT Basic, CPR, ICS-100
Status: Use active or inactive. Blank defaults to active.
Dates: Any standard date format (MM/DD/YYYY, YYYY-MM-DD, etc.)