File Analyzer Checklist: Inspect Files Before Sharing or Uploading

A file can look correct in a folder and still be the wrong upload, the wrong version, or the wrong format. Before sending a file to a client, attaching it to a form, or archiving it in a shared drive, a quick inspection can prevent avoidable mistakes.

The File Analyzer tool reads basic file details in your browser. It can help you check name, size, extension, MIME type, hashes, timestamps, and previewable information without uploading the file to a server.

Check the identity of the file

Start with the basics: filename, extension, and size. A renamed file may have an extension that does not match its real type. A suspiciously small file may be an incomplete export. A very large file may need compression before email or upload.

• Confirm the extension matches the expected file type.
• Compare size against the expected export or previous version.
• Use a hash when you need to verify an exact file copy.

Use hashes for exact comparison

Hashes are useful when two files must be identical. If a downloaded file, backup, release asset, or shared attachment has the same SHA-256 hash as the expected version, the content matches. If the hash differs, treat it as a different file even if the name is the same.

Keep sensitive files local

File inspection often involves documents that should not be uploaded just for a quick check. Running the analysis locally is useful for contracts, reports, client files, exports, and internal documents where privacy matters.