Data Validation in Excel: Excel learning resource
Data Validation in Excel
Extracted from saved YouTube search results - titled "Data Validation in", filed under Data Validation & Dropdowns for its data validation coverage. It's a video from CheatSheets — use it to practice Dropdown lists and Dependent dropdowns.
What to practice while watching
- Dropdown lists
- Dependent dropdowns
- Custom validation formulas
Recommended learning path
Start by watching the lesson once without pausing, then reopen Excel and rebuild the example with your own small dataset. Save one clean practice workbook before moving to the next topic.
Source details
- Channel: CheatSheets
- Format: video
- Level: Intermediate
- Topic: Data Validation & Dropdowns
- Listing source: saved YouTube search capture, filed by topic
Go deeper with this skill
Control data entry so reports and formulas do not break because of inconsistent labels. For this article, the goal is to practice: Extracted from saved YouTube search results - titled "Data Validation in", filed under Data Validation & Dropdowns for its data validation coverage. It's a video from CheatSheets — use it to practice Dropdown lists and Dependent dropdowns.
Practice workbook setup
Create a small lookup sheet with allowed values, then use a separate sheet for data entry.
Practice workflow
- Build the allowed list before adding validation to the input cells.
- Apply validation to the entire input column or table field.
- Add an input message that tells users what to choose.
- Test invalid entries, pasted values, and blank cells.
Quality checks
- The allowed list has no duplicates or accidental spaces.
- Validation covers future rows, not only the current sample.
- Error alerts explain how to fix the entry.
Common mistakes
- Typing allowed values directly into the validation box when a maintained list would be safer.
- Forgetting that pasted data can bypass some expected behavior.
- Using dropdowns where free text or a lookup table would be more flexible.
Next actions
- Add a helper check that counts invalid or blank entries.
- Use the dropdown field in a PivotTable or SUMIFS summary.
Formula focus: even if this workflow is not formula-heavy, add one check cell that confirms the final output still matches the source data.
