How to Lock Cells in Excel (3 Ways)
Easily Lock Cells in Excel Worksheets by Avantix Learning Team | Updated June 26, 2026 Applies to: Microsoft® Excel® 2016, 2019, 2021, 2024 or 365 (Windows) It's easy to lock cells in Excel to protect data or formulas. This is typically a two-step process. First,...
How to Stop or Control Green Error Checking Markers in Excel
Turn Off or Customize Error Checking Options (and Markers) in Excel by Avantix Learning Team | Updated June 26, 2026 Applies to: Microsoft® Excel® 2016, 2019, 2021, 2024 and 365 (Windows) In Microsoft Excel, errors are flagged by default with a small green marker or...
How to Password Protect Your Excel Worksheets and Workbooks
Protect Worksheets and Workbooks in Excel by Avantix Learning Team | Updated January 25, 2026 Applies to: Microsoft® Excel® 2016, 2019, 2021, 2024 or 365 (Windows) You can password protect worksheets and workbooks in Excel. If you want to prevent other users from...
How to Insert a Check Mark or Tick Mark in Google Slides (3 Ways)
Insert or Type a Check Mark or Tick Mark Symbol in Google Docs by Avantix Learning Team | Updated May 18, 2022 Applies to: Google Slides® (Windows) You can insert or type a check mark or tick mark symbol in a Google Slides presentation in several ways. Check marks can...


