Save your Microsoft Excel spreadsheet as a CSV file on macOS in 3 steps — then upload to iSMS for bulk SMS.
Export your Microsoft Excel contact list as a CSV file on macOS — compatible with iSMS CSV bulk upload.
Open your Excel spreadsheet. Go to File → Save As…

In the Save dialog, click the Format dropdown and select Comma Separated Values (.csv).

Choose a filename and save location, then click Save. Your CSV is ready to upload to iSMS.

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