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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.

See How It Works

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

AI Protection

Block Copilot from your spreadsheets

Microsoft Copilot accesses your data without consent. SheetGuard blocks it at the add-in level — no Group Policy needed.

Zero data sent to AI

SheetGuard - AI Blocker
Protected

Block Copilot

Prevents all AI access

Deep Block

Registry-level protection

Data sent to AI0 bytes
Blocks today12

Organization

Organize 100+ 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 saves full snapshots you can restore anytime.

5 snapshots free, unlimited 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

Personal filters that don't wreck the view

Shared workbooks mean shared filters. Filter Guard gives everyone their own filter state.

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

How It Works

Get protected in 60 seconds.

1

Install

Get SheetGuard from Microsoft AppSource. One click.

2

Toggle

Turn on AI Blocker. Organize your tabs. Set up filters.

3

Protected

Runs entirely in your workbook. No browser extension. No network access.

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

  • AI Blocker — Full
  • Tab Folders — 2 folders
  • Smart Undo — 5 operations
  • Filter Guard — Locked
Install Free
Most Popular

Pro

$49.99/yr

$4.17/mo · Save 16%

  • AI Blocker — Full
  • Tab Folders — Unlimited
  • Smart Undo — 100 operations
  • Filter Guard — Full
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 deprecated 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 from AppSource
Install Free from AppSource