New • Desktop utility

Shrink heavy Excel files safely — without breaking formulas.

LyncShrink cleans bloated workbooks locally: unused styles, runaway formatting, junk named ranges, and oversized media. Your data stays put, your file opens faster.

Join early access See how it works
Local-only. No uploads. Backup saved automatically Safe & Custom modes

What LyncShrink removes

Thousands of unused styles, formatting down to row 1,048,576, stale named ranges, and optional image compression — all without touching your formulas or data.

Designed for FP&A, reporting, pricing, and consulting teams shipping Excel every week.

Built for finance-grade workbooks

Safe by default

“Safe” preset trims only unused styles and formatting beyond the used range—never deletes sheets, data, or formulas.

Local & private

Runs entirely on your machine. Perfect for corporate environments with locked-down data policies.

Audit-friendly

Clear before/after size, a human-readable change report, and a guaranteed backup of the original file.

How LyncShrink works

1) Analyze

  • Reads sheets, styles, named ranges, and images.
  • Shows size, sheet count, and style/formatting bloat.
  • Flags obvious cleanup wins before you run anything.

2) Optimize

  • Removes unused styles and invalid names.
  • Trims formatting beyond the true used range.
  • Optional: compress oversized images.

3) Report

  • Compares original vs optimized size with % saved.
  • Lists changes (“Removed 4,318 unused styles”).
  • Outputs a backup and a clean `_lyncshrink` copy.
Free tier: limited runs per month. Pro unlocks unlimited optimizations and larger file sizes.

What gets cleaned — without touching your formulas

Unused styles

Removes styles that no cell references, while keeping Excel’s built-ins intact.

Runaway formatting

Clears formatting applied to entire blank columns/rows beyond the real used range.

Invalid named ranges

Deletes names that point nowhere or aren’t referenced in formulas.

Optional image compression

Downscales oversized images to reduce weight without changing aspect ratios.

Safety, governance, and control

Backup firstCreates `{file}_original_backup.xlsx` before any change.
Local logsLogs stay on your device; no workbook data leaves the machine.
Choose the modeUse “Safe” for quick cleanup or “Custom” for advanced passes.
License-awareFree/monthly limits with a simple Pro unlock path.

Be first in line for LyncShrink

We’re preparing the MVP with the flows and safeguards above. Tell us about your heaviest workbooks and we’ll prioritize your use cases.

Ideal for FP&A packs, audit files, consolidation workbooks, and client deliverables.

Request early access See existing downloads