SwingFiles
xlsx → tarPACKAGE • Local processing

Package .XLSX → .TAR

Place the source file in a new archive or compressed stream. Processing happens on your device, with no file upload.

Package .XLSX → .TAR

Drop Files for Local Browser Processing

Auto-detects magic bytes • Zero daily caps • Instant ZIP & P2P Swing chaining

Target Format & Engine Parameters

PACKAGE: Place the source file in a new archive or compressed stream.

Compute Engine:

Technical Specifications: XLSX (.xlsx) vs TAR (.tar)

Specification ParameterSource: .XLSX (XLSX)Target: .TAR (TAR)
Full Format NameOffice Open XML WorkbookPOSIX Tape Archive
IANA MIME Typeapplication/vnd.openxmlformats-officedocument.spreadsheetml.sheetapplication/x-tar
Magic Byte Signature (Hex)50 4B 03 0475 73 74 61 72
Compression & FidelityLossless SupportedLossless Supported
Alpha / Transparency & DepthUTF-8 / Binary Structured StreamUTF-8 / Binary Structured Stream
Typical Size Reduction Ratio3.4:11.0:1
OS & Platform SupportCross-Platform via SwingFiles WebAssembly EngineCross-Platform via SwingFiles WebAssembly Engine

Processing Steps

  1. 1. Drop .XLSX Files Locally
    Choose XLSX (application/vnd.openxmlformats-officedocument.spreadsheetml.sheet) files from your device. The browser checks their type before processing.
  2. 2. Package Locally
    Place the source file in a new archive or compressed stream.
  3. 3. Save .TAR or Swing P2P
    Download the .tar output, export a batch ZIP, or choose "Convert & Swing" to transfer it to another device.

Frequently Asked Questions

What does this XLSX to TAR route produce?

Place the source file in a new archive or compressed stream. The target format may have different quality or capabilities than the source.

Does the .xlsx file leave my device?

The conversion runs in your browser. Files are not uploaded to a conversion server.

Can I process large .xlsx files or batches?

There is no daily conversion quota. Large files and batch size depend on available browser memory and the format engine.

Reverse Pair (TAR-TO-XLSX) & Related Format Conversions

Reverse: tar to xlsx
TAR to XLSXXLSX to ZIPXLSX to GZXLSX to TGZXLSX to 7Z

Same-Wi-Fi P2P Radar Discovery

Devices on the same Wi-Fi appear automatically below — zero codes needed

Scanning local Wi-Fi subnet… Open this page on another device to pair automatically
AES-256-GCM file key stays in the peer channel; compare fingerprints before transferringPeer-to-peer · live speed appears during transfer

Phone ↔ PC Room Pairing

VERIFY PEER
6-Digit Swing Room Code
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Drop Unlimited Files to Swing (20GB+ Direct-to-Disk Stream)

Zero cloud upload caps • 64KB chunked SCTP DataChannel • 4MB backpressure • Mobile Screen WakeLock protection

Ready for zero-cloud WebRTC SCTP streaming (64KB chunks, 4MB backpressure control).
WakeLock: STANDBY