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File Tools

File Extension Checker

Use File Extension Checker to inspect file and report an inspection report; the workspace turns file into an inspection report without hiding the relevant controls.

an inspection report
The live result appears here after you provide input and run the tool.

Work from a copy and verify that pages, tracks, metadata, filenames, and formatting remain usable before replacing an original file. Live controls replace this source-visible preview when JavaScript loads.

Task-specific workflow

How to Use File Extension Checker

  1. Prepare file and enter or select file, Or filename in the workspace.
  2. Review the available options, then choose Check extension to run the task.
  3. Inspect an inspection report, compare it with the source and selected settings, and save or copy it only after it meets your requirements.
Worked scenario

File Extension Checker Example

Choose a disposable sample document or media file, use file, Or filename, and verify the resulting file independently before applying the same workflow to important originals.

How File Extension Checker Handles This Task

File Extension Checker focuses on inspect file with the controls provided. The working area uses File, Or filename to keep the input, options, and result connected to the operation named on this page.

Work from a copy and verify that pages, tracks, metadata, filenames, and formatting remain usable before replacing an original file.

Frequently Asked Questions About File Extension Checker

What should I provide to File Extension Checker?

Provide file. When available, complete file, Or filename with representative, correctly formatted values before running the primary action.

What should I check in the File Extension Checker result?

Review an inspection report for completeness and compare it with the original input, selected options, and the requirements of the application where you will use it.

Should I keep the original file after using File Extension Checker?

Work from a copy and verify that pages, tracks, metadata, filenames, and formatting remain usable before replacing an original file.