How to change the suffix of mobile phone? Popular topics and practical tutorials on the Internet
Recently, "mobile phone file management" has become a hot topic, especially how to modify file suffixes, which has triggered widespread discussion. Whether it's for compatibility, file repair, or customization needs, mastering this skill is necessary. This article will combine the hot content of the past 10 days to provide you with detailed tutorials and structured data.
1. Why do you need to modify the file suffix?

The file suffix determines how the system recognizes and processes the file. The following are common reasons for modification by users:
| scene | Example |
|---|---|
| Format compatible | Change .txt to .csv to import into spreadsheet software |
| repair file | Change the damaged .jpg to .rar and try to decompress it. |
| Hidden files | Change sensitive files to .system to avoid accidental deletion |
2. Tutorial on changing suffix on Android/iOS mobile phone
Method 1: Via File Manager (Android)
1. Open the “File Management” app
2. Long press the target file → select "Rename"
3. Modify the suffix after "." (such as .mp4→.mov)
4. Confirm to save
Method 2: Use third-party APP (iOS)
iOS system requires tools such as "Files" (Apple official) or "Documents by Readdle":
| APP name | Operation path |
|---|---|
| Files | Long press the file → "Rename" → modify the suffix |
| Documents | Select the file → click "..." → "Rename" |
3. Precautions and Risk Warnings
1.Back up original files: Incorrect modifications may cause the file to fail to open.
2.Avoid system files: Modifying the system suffix may cause phone failure.
3.Common suffix comparison:
| File type | Common suffixes |
|---|---|
| video | .mp4, .avi, .mov |
| pictures | .jpg, .png, .webp |
| Compressed package | .zip, .rar, .7z |
4. Recent hot topics
1.#WeChat file suffix modification failed#: Users reported that files saved from WeChat need to be "saved as" before the suffix can be modified.
2.#Mobile virus disguise suffix#: Security agencies warn against malicious files that change .exe to .txt.
3.#云diskcompatibility#: The automatic conversion of suffixes on some network disks has caused controversy over data loss.
Summary: Changing the suffix on your mobile phone is a practical skill, but it needs to be done with caution. It is recommended to rationally use the method in this article in conjunction with the risk reminders in hot cases.
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