Convert SBF to CSV

A contacts application may require CSV when it cannot import an SBF backup directly. CSV also lets you edit contact records in spreadsheet software and transfer them between address-book systems.

What the SBF format is

In the contacts and address books category, SBF is a proprietary contact-backup or address-book container used by a particular application or device. The .sbf extension does not identify one universal specification, so the program that created the file determines how it can be opened and exported.

An SBF file may contain binary records, database indexes, application-specific metadata, and backup information. A text editor or spreadsheet normally cannot interpret it. Identify the creating program or device from the backup folder, filename, file properties, or its documentation before selecting software.

What the CSV format is

CSV stores contact records as rows and delimited text fields. Typical fields include name, company, phone number, email address, street, city, region, postal code, birthday, and notes. The delimiter may be a comma, semicolon, or another character depending on the receiving application.

Spreadsheet programs, CRM systems, mailing-list tools, and many address-book applications can read CSV. It is easy to inspect and edit, but it has no universal column names or contact schema. A CSV export may not preserve photos, groups, categories, multiple address labels, custom fields, linked contacts, or synchronization metadata.

How to convert the file

1. Determine which application or device created the SBF file. Do not rename contacts.sbf to contacts.csv; changing a filename extension does not convert the data.
2. Make a copy of the SBF backup. Install the original contact-management or phone-backup software, preferably the version that created the file. A current version may use a different backup structure or no longer support the old format.
3. Open or restore the backup using the application's relevant command, such as File → Open, Backup → Restore, or Contacts → Import. If restoration requires a device or account, use a test device or separate account first.
4. After the contacts are visible, use the application's export function, commonly File → Export → CSV, Contacts → Export, or Address book → Save as. Select UTF-8 encoding and the delimiter required by the destination system.
5. If the application offers only vCard export, export to .vcf first, then import the vCard file into a desktop address-book program that supports CSV export. Confirm that the intermediate program maps multiple phone numbers, addresses, and email addresses correctly.
6. Open the exported CSV in LibreOffice Calc or another spreadsheet program. Choose UTF-8 when prompted, import phone numbers as text, and inspect quoted commas, quotation marks, embedded line breaks, accented characters, and leading zeroes.
7. Import the checked CSV into the destination address book and map each column to its contact field. Compare the record count and several records before deleting the original SBF backup or accepting automatic deduplication.

There is no dependable general-purpose desktop converter for every SBF variant. LibreOffice Calc can edit the resulting CSV but normally cannot decode a proprietary SBF container. Reputable online services such as Zamzar or CloudConvert should be considered only if the service's current format list explicitly supports the exact SBF variant and its privacy and retention terms are acceptable; do not upload an address-book backup containing private contact data without checking those terms.

Quality and compatibility limits

The export may omit contact photographs, groups, category labels, birthdays, linked records, phone-type labels, custom fields, or synchronization information. Some programs also flatten multiple values into one field or discard fields for which the CSV destination has no matching column.

Use UTF-8 for accented names and non-Latin scripts. Keep telephone numbers as text so values such as 001-555-0123 retain their leading zeroes. Match the destination application's required delimiter, line endings, column names, and quoting rules because CSV does not define these details consistently.