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Runs 100% Locally.

Excel, Under Your Control

Block Copilot. Keep your data 100% local. Unlock powerful tools for Excel.

Now with Better Undo.

14-day Pro trial included.
Microsoft AppSource
100% Local — Zero Cloud
14-Day Pro Trial Free

Features

AI Protection

Block Excel Copilot at the system level

Free companion app that disables Copilot in the UI with one toggle. No Group Policy, no admin rights.

Always free

SheetGuard Companion

Disable Copilot

Copilot button & sidebar

Block Data Access

AI analysis & telemetry

Copilot Blocked

Organization

Organize 100+ Excel tabs into folders

Collapse, expand, color-code. No more scrolling through endless worksheet tabs.

2 folders free, unlimited with Pro

SheetGuard - Tab Folders
Revenue Reports4
Q1 Revenue
Q2 Revenue
Q3 Revenue
Q4 Revenue
Expense Tracking3
Dashboards2

Recovery

Undo anything, even after closing

Excel's undo dies when you close. SheetGuard tracks your edits and takes snapshots you can restore anytime.

10 operations free, 500 with Pro

SheetGuard - Smart Undo

Restore Points

Edited cells B4:B12

Just now

Current

Inserted 3 rows

2 min ago

Applied filter to Column A

8 min ago

Pasted data from clipboard

15 min ago

Sheet opened

1 hour ago

Collaboration

Excel filters that don't wreck the view

Save Excel filter presets and get notified when co-authors change them. One click to restore your view.

Pro feature

SheetGuard - Filter Guard

Saved Presets

My Filter View

Region: East, Status: Active

Active

Q4 Analysis

Date: Oct-Dec, Amount: >$1000

Filter changed by another user

Data Protection

Stop paste from destroying hidden rows

Excel silently overwrites filtered-out rows when you paste. SheetGuard alerts you so you can undo it.

Pro feature

SheetGuard - Hidden Row Protection
NameRegionAmount
2JohnsonEast$3,450
4MartinezWest$2,100HIDDEN
5WilliamsEast$4,800
7ChenWest$1,950HIDDEN

2 hidden rows were overwritten

Rows 4, 7 affected by paste

Undo Hidden RowsView Audit Log

Images are illustrative and may differ from the actual Excel experience.

Setup

Get protected in under 2 minutes.

1

Block Excel Copilot

Download the free app and block Excel Copilot in one click. Windows only.

2

Install the Excel Add-in

One click from Microsoft AppSource. Works on Excel for Windows and Mac.

3

You're in control

Your data never leaves your machine.
No cloud, no tracking.

Pricing

Start free. Upgrade when you're ready.

Every install starts with 14 days of Pro — no credit card needed.

MonthlyAnnualSave 16%

Free

$0

Forever

  • Block Copilot — Free companion app
  • Tab Folders — 2 folders
  • Smart Undo — 10 operations
  • Filter Guard
  • Hidden Row Protection
Install Free
Most Popular

Pro

$49.99/yr

$4.17/mo · Save 16%

  • Block Copilot — Free companion app
  • Tab Folders — Unlimited
  • Smart Undo — 500 operations
  • Filter Guard
  • Hidden Row Protection
Get Pro

Already a subscriber? Manage your plan

Frequently asked questions

Your data is preserved. You keep the free tier forever. Upgrade anytime to unlock limits.
No. All processing is local. We don't collect, store, or transmit your spreadsheet data.
Microsoft removed Copilot-specific Group Policies. The remaining policies affect ALL AI features, not just Copilot. SheetGuard gives you granular control.
Yes. No contracts, no commitments.

Your spreadsheets. Your rules.

No credit card. No cloud. No cookies.

Install Free
Install Free