Recover Deleted Apache Arrow .feather tables on Windows

Updated on Oct 29, 2026 | by Qiling

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What the File Contains
Check Existing Copies
Recover from Local Storage
Verify the Result
Frequently Asked Questions

Lost Apache Arrow .feather tables after an accidental deletion, cleanup, or drive problem? First determine whether the original file was stored on this Windows PC, an attached drive, or a remote service. The right recovery path depends on that location, and finding a filename alone does not prove the content is intact.

What the File Contains

Feather stores tabular data using Apache Arrow's file format. A valid extension alone does not prove every batch or column survived.

If the file still exists but will not open, make a copy before troubleshooting. A deleted-file scan cannot repair an already corrupted file. If it was never saved, look for application autosaves or exports rather than expecting a disk scan to recreate unsaved work.

Check Existing Copies

Look for the pipeline output directory, source CSV or Parquet files, backups, Recycle Bin, and reproducible export jobs. Avoid rerunning the pipeline into the same folder before scanning.

For a deleted local file, stop writing to the physical source disk. New downloads, saves, or installations can overwrite recoverable data; SSD TRIM may also make deleted blocks unavailable. Prepare a different physical drive for the recovered output. If the device repeatedly disconnects or reports hardware errors, avoid repeated scans and consider specialist assistance.

Recover from Local Storage with Qiling Deep Data Recovery

Qiling Deep Data Recovery can search Windows-visible local disks and removable media for deleted files. It does not search cloud-only files on a remote service or guarantee intact content. Select the scan mode according to how the file went missing.

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Step 1. Choose the Recovery Mode

Open Qiling Deep Data Recovery. Choose Fast Scan for a recently deleted local file, Recycle Bin Scan after emptying the bin, USB/SD Scan for removable storage, or Format Scan if the original volume was formatted. The file extension does not determine the mode.

Select a Qiling scan mode for Apache Arrow .feather tables

Step 2. Select the Original Location

Select the disk or partition that held the missing file. Check its drive letter and capacity so you do not scan a similarly named external drive. If the source is a cloud-only or server-only location, use its version history or backup system instead.

Choose the original Windows drive for Apache Arrow .feather tables

Step 3. Review the Scan Results

Search for the original name and extension, then compare folder paths, dates, and file sizes. Select several plausible versions when available. A zero-byte file or a filename without usable content is not a successful recovery.

Review found Apache Arrow .feather tables

Step 4. Save to Another Physical Drive

Select the candidate files, click Recover, and choose the prepared destination drive. Do not save to the source disk. Keep the recovered files untouched and test copies, especially when the format has external dependencies.

Save recovered Apache Arrow .feather tables away from the source disk

Verify the Result

Read a recovered copy with a compatible Arrow reader. Compare schema, row count, column types, and representative records with the expected table.

If the first candidate fails, compare other recovered versions and earlier backups. A valid-looking file may still lack linked data, contain incomplete records, or use an incompatible application version. After confirming the result, back up the recovered file together with the source materials it needs.

Frequently Asked Questions

Can I just rename a CSV file to .feather?

No. Feather and CSV use different formats; regenerate from source data if needed.

Should I save recovered files to their original folder?

No. Save them on a different physical disk to reduce the risk of overwriting deleted data.

What if the source is a remote service?

Check the service's recycle bin, revisions, and server backups. A local disk scan cannot recover data stored only on a remote server.