Find formula errors, overwritten calculations, suspicious blanks and pattern breaks before a spreadsheet is relied on.
Listing updated:August 4, 2026
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Overview
Spreadsheet Preflight is a read-only quality check for important spreadsheets. Run it before a report, handoff, client delivery or management review to find calculation risks while the workbook context is still visible.

WHAT IT CHECKS
• Find cells that currently evaluate to formula errors.
• Flag hard-coded values that interrupt a formula-dense column.
• Find suspicious blank gaps between formulas.
• Identify formulas that differ from the dominant pattern in a column.
• Navigate directly from each finding to the exact sheet and cell.
• Review the current workbook without changing its contents.

HOW IT WORKS
Open the add-on from Extensions inside Google Sheets™, choose Run preflight, review the results, and navigate directly to any location that needs attention.

PRIVACY
• Access is limited to the spreadsheet where the user runs the add-on.
• Workbook content and findings are not sent to Tidy Work Labs servers.
• Workbook content and findings are not retained by Tidy Work Labs.
• The add-on does not modify formulas, values, formatting or sharing settings.

LIMITS
• Scans are bounded to 150,000 used cells per run.
• The add-on is available in desktop Google Sheets™ because Editor add-ons are not available in the mobile editor apps.
• Findings are review prompts and are not a guarantee that every spreadsheet issue will be detected.

PRICING
Free during the early-access release. No payment details are required. Any future optional paid plans will be disclosed before they take effect.

SUPPORT
Setup: https://tidyworklabs.com/setup/spreadsheet-preflight
Support: https://tidyworklabs.com/support
Privacy: https://tidyworklabs.com/privacy

Tidy Work Labs is an independent developer. This product is not affiliated with or endorsed by Google.
Google Sheets™ is a trademark of Google LLC.
Additional information
PricingFree of charge
Privacy policy
Terms of service
Spreadsheet Preflight will ask for the permissions shown below. Learn more
Spreadsheet Preflight will need access to your Google account
This will allow Spreadsheet Preflight to :
View and manage spreadsheets that this application has been installed in
Display and run third-party web content in prompts and sidebars inside Google applications
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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