CTS Guard for Google Sheets™
Check donor and volunteer sheets before they are shared
Donation exports, volunteer sign ups, and grant reporting tabs are edited by staff and volunteers alike. CTS Guard reviews the tab in Google Sheets™ first.
Installs from the Google Workspace Marketplace™. Runs inside Google Sheets™, nothing to upload.
Many hands, many formats
Donation platforms, event sign up forms, and spreadsheets maintained by volunteers rarely match. Duplicate donors and inconsistent dates make reporting slower than it should be.
- The same donor recorded twice across campaigns
- Emails with stray spaces breaking a mail merge
- Donation dates and amounts stored as text
- Form exports with extra header rows
What CTS Guard checks
- Duplicate donor and volunteer rows, including near matches
- Email and name formatting inconsistencies
- Dates and amounts stored as text
- Whitespace inside cells
- Empty rows and columns
- Structure issues that block a CRM import
How it works inside Google Sheets™
- 1Open your sheet in Google Sheets™ and launch CTS Guard from the Extensions menu.
- 2Run a check. Guard scans the tab and shows what looks off, before anything changes.
- 3Apply the fixes you want. Your original values stay in the sheet until you approve a change.
Sheets nonprofits teams already have
Donor lists
Duplicates across campaigns and platforms.
Volunteer sign up sheets
Inconsistent phone and email formats.
Grant reporting tabs
Amounts as text and totals inside the data range.
Event attendee exports
Extra header rows from form tools.
Safe to send
Share a report or list with a board member or funder without duplicate rows in it.
Import ready
Check a sheet before importing into a donor CRM or email tool.
Available on the Google Workspace Marketplace™
Clean That Sheet Guard™ is published as a Google Workspace Marketplace™ add-on and installs directly into Google Sheets™. It reports what it finds before anything changes, and your original values stay in the sheet until you approve a fix.
- Installed from the Google Workspace Marketplace™
- Runs in a side panel inside Google Sheets™
- Nothing to upload to use Guard
- Operated by Almeyda Holdings LLC
Check the list before the appeal goes out
Install CTS Guard from the Google Workspace Marketplace™ and review your donor tab in place.
Installs from the Google Workspace Marketplace™. Runs inside Google Sheets™, nothing to upload.
The FAQ
CTS Guard for other teams
“We've found this tool to be a great fit for the kind of spreadsheet work we do at Lombard Toyota. It helps turn large, messy data exports into something much easier to read and work with, without requiring a lot of manual cleanup.
What we especially like is that it seems to understand the structure of dealership data instead of treating every column the same. That saves time and makes the finished spreadsheets much more useful for our day-to-day work.
Definitely a helpful tool for an automotive dealership working with a lot of data.”
Lombard Toyota
Google Workspace Marketplace™ Review, August 13, 2026