Moving to a new smartphone or restoring data after a system reset often becomes a real challenge if your list of numbers is stored in an incompatible format. The situation is aggravated when the database is exported from the old system in a form CSV filethat the default Android Contacts app does not always correctly recognize when loaded directly. Ignoring the nuances of transfer can lead to thousands of records turning into an unreadable set of characters or duplicates.
The most reliable and proven method for solving this problem is to use a cloud service Google Contacts as an intermediate link. This approach allows you not only to correctly distribute data across fields (first name, last name, phone, email), but also to automatically synchronize it with all devices linked to your account. Unlike local methods, working through the web interface gives you full control over the import structure and the ability to pre-check.
In this article we will analyze the entire process in detail: from preparing the source file to final synchronization on the device. You will learn which fields are required for correct display, how to avoid common encoding errors, and what to do if the system displays a failure message. Follow the instructions sequentially to ensure the safety of your phone book.
Preparing the CSV file for correct import
Before you begin loading data, it is critical to ensure that the source file meets the platform requirements. The format CSV (Comma-Separated Values) assumes that the data is separated by commas or semicolons, but different apps (Excel, Outlook, old phone books) may use different encodings. If the file is saved in the wrong encoding, instead of Cyrillic names you will receive a set of incomprehensible characters.
Open your file in a spreadsheet editor, for example, Microsoft Excel or Google Sheets, and check the column structure. The first line should contain field headers such as First Name, Last Name, Phone, Email. Google Contacts matches data most accurately when the headers are standard. Make sure that phone numbers are written in a single format, preferably with a country code, to avoid problems with international calls in the future.
After checking, save file. If you are using Excel, select format CSV (comma delimited) and make sure the encoding is set to UTF-8. This is a universal standard that guarantees the correct display of Russian letters on any Android device. Ignoring this step is the most common reason for the appearance of “crackers” in contacts after transfer.
⚠️ Attention: Never open or edit a CSV file in standard Windows Notepad without first setting up the encoding, as this may break the delimiter structure and damage the data.
Importing data via the Google Contacts web interface
The main stage of the transfer occurs not on the smartphone itself, but through a browser on a computer. This is due to the fact that the mobile application has limited functionality for working with external files. Go to the official website contacts.google.com and log in using the same account that is used on your phone. The interface may differ slightly depending on updates, but the logic of actions remains unchanged.
On the left side of the screen, find the navigation menu and select Import. If you don't see this button right away, click on the gear icon or three horizontal bars in the top left corner. The system will prompt you to select a file from your device. Click the button Select file and specify the path to the previously prepared CSV document.
After selecting the file, the analysis process will begin. Google will try to automatically match the columns in your file to its fields. Review the field map carefully: make sure that the column with telephone numbers is assigned to the field "Phone", and the names are assigned to the field "Name". If the system made an error, you can manually change the assignment of each column before the final confirmation.
☑️ Check before import
If you have several Google accounts, make sure that you are importing into the main one on your smartphone, otherwise the contacts will not appear in the phone book.
Setting up field mapping and eliminating conflicts
The most crucial moment is mapping (comparing) data. It is often the case that your file has additional fields that are not in the standard address book, such as "Position" or "Department". Google will offer to ignore them or save them as notes. The decision depends on your needs: if this information is important, save it, but remember that it may take up unnecessary space.
Pay special attention to duplicates. If the file contains contacts that already exist in your cloud database, the system will offer options: create a duplicate, skip the entry, or merge the data. The optimal solution is usually to select the option "Merge", which will allow you to update outdated phone numbers or email addresses without creating extra copies of cards.
The table below shows the main fields and recommendations for filling them out for perfect import:
| Field in CSV | Recommended format | Importance |
|---|---|---|
| First Name | Text (without special characters) | High |
| Phone Number | +7 (999) 000-00-00 | Critical |
| name@example.com | Medium | |
| Company | Organization name | Low |
After setting all parameters, press the button Import. The process can take from a few seconds to several minutes depending on the size of the database. Upon completion, you will see a notification about the successful addition of contacts and their number.
What should you do if the system writes “Unsupported format”?
This means that the column headers in your file are not recognized. Try renaming the first line of the file to standard English names: Name, Phone, Email, or use Google's export template to create the correct sample.
Synchronizing contacts on an Android device
Once the data appears in the cloud, it should automatically be pulled up to your smartphone. However, sometimes this process requires manual intervention or checking settings. Go to Settings your device, find the section Accounts or Users and accounts. Select your Google profile in the list.
Make sure the switch is next to the item “Contacts” active. If it's already turned on, try turning it off and on again to force the update. After that, open the Contacts app on your phone. You may need to wait a few minutes, especially if the list contains thousands of entries.
You can perform manual synchronization to speed up the process. In the same account menu, click on the three dots in the upper corner and select Synchronize. If contacts do not appear, check the display filter in the phone book application itself: sometimes there is a restriction on displaying contacts only from the SIM card or only from the device, and not from the Google account.
Solving common import problems
Even if you follow all the instructions, users may encounter technical difficulties. One of the most common problems is the appearance of contacts with names consisting of strange characters. This is a direct consequence of incorrect file encoding. There is only one solution: resave the file in UTF-8 through an advanced text editor or online converter.
Another situation: the contacts were loaded, but without photos or with incorrect numbers. This often happens if the numbers in the CSV file were written with extra spaces, parentheses, or hyphens that the system could not process as a numeric code. In such cases, pre-cleaning the data in Excel using formulas or macros before uploading helps.
If you receive the “Import limit exceeded” error, remember that Google places a limit on the number of contacts you can upload at one time (usually a few thousand). Break a large file into several smaller parts and download them one by one. This will also make it easier to find errors if they occur in a specific batch of data.
⚠️ Attention: If after import you notice massive duplication of records, do not rush to delete them manually. Use the built-in Merge and Fix feature in the web version of Google Contacts, which will automatically find and merge duplicates.
Alternative methods and third-party applications
Although the method through Google Contacts is the most stable, there are other methods of transferring data that may be suitable for you specific situations. Some smartphone manufacturers, such as Samsung or Xiaomioffer their own cloud services and migration tools that also support CSV import. However, their functionality is often inferior to the capabilities of the Google ecosystem.
You can use third-party applications from the store Google Play, for example, “Copy My Data” or “MCBackup”. These utilities allow you to download a CSV file directly into the phone's memory and register numbers in a local database. This approach is useful if you do not have access to the Internet or do not want to link your contacts to the cloud.
However, using third-party software carries security risks. You entrust your personal data to application developers, who may not guarantee its safety. In addition, free versions of such apps often have restrictions on the number of records that can be imported. Therefore, for one-time operations to transfer large databases, the method with Google remains the uncontested leader.
Using the Google cloud service is not just a method of transfer, but also creating a reliable backup copy that will protect your data if your phone is lost or broken.
Is it possible to import contacts from CSV directly into the phone’s memory, bypassing Google?
Technically, this is possible through some third-party apps or features of specific Android skins, but the stock Contacts app doesn't have a direct "Import from CSV" button for local storage. It is focused on working with accounts (Google, SIM, phone). Direct import often leads to encoding errors and lack of synchronization.
What to do if contact photos are missing after import?
When importing via a CSV file, photos are usually not transferred, since this format is text-based and does not support embedding images. Photos are linked to your account and stored separately. You will have to add them manually or use the social network synchronization feature if it is supported by your phone model.
How to delete all imported contacts if something went wrong?
The web version of Google Contacts has a “Undo Changes” feature. In the menu on the left, select “Settings” or find the “Undo changes” item, where you can roll back the state of the database 10 minutes, an hour, a week or even a month ago. This is the fastest way to remove an erroneously downloaded batch of data.
Is importing XLS or XLSX files supported instead of CSV?
Direct upload of Excel files (.xls, .xlsx) to Google Contacts is often unavailable or unstable. The system requires CSV format. You need to open the Excel file and perform a Save As operation, selecting the file type "CSV (comma delimited)" before starting the import.