Excel Formula Efficiency Series
Total watch time
1h 12m
at 1× speed · exactly 1 hour, 12 minutes, 18 seconds at 1×
| 1× | 1h 12m 18s |
|---|---|
| 1.25× | 57m 50s |
| 1.5× | 48m 12s |
| 1.75× | 41m 19s |
| 2× | 36m 9s |
Average video6m 2s
Longest14m
Shortest2m 15s
Remaining—
Plan to finish
About 2 days at an hour a day
Pick a daily pace and the days you'll watch. Ticked videos are skipped.
Days
At one hour a day, every day, this playlist takes about 2 days. Turn on JavaScript to plan around your week.
Subscribe (keeps updating)
Google Calendar (first session)
The .ics file imports into Google Calendar, Apple Calendar and Outlook — one event per study day listing that day's videos. Subscribing instead keeps the plan in step with the playlist: new videos become new sessions. In Google Calendar use Other calendars → From URL with the copied feed URL.
Videos (12)
1h 12m in total · tick what you've watched
Tick videos you've watched — progress is saved in this browser.
| Watched | ||||
|---|---|---|---|---|
| 1 |
 Excel Formula Efficiency 1: SUMPRODUCT function 12 Examples
|
14:00 | 2009-02-24 | |
| 2 |
 Excel Formula Efficiency 2: Time Your Formulas For Speed
|
5:34 | 2009-02-24 | |
| 3 |
 Excel Formula Efficiency 3: Database D Functions Are Fast
|
9:44 | 2009-02-24 | |
| 4 |
 Excel Formula Efficiency 4: SUMIFS & COUNTIFS Are Fast
|
7:17 | 2009-02-24 | |
| 5 |
 Excel Formula Efficiency 5: Helper Cell Speed Up Calculation
|
3:46 | 2009-02-24 | |
| 6 |
 Excel Formula Efficiency 6: Concatenated Field Speeds Up Formula
|
6:43 | 2009-02-24 | |
| 7 |
 Excel Formula Efficiency 7: Helper Column Speeds Calculation
|
6:08 | 2009-02-24 | |
| 8 |
 Excel Formula Efficiency 8: Custom VBA Function Can Be Fast
|
3:04 | 2009-02-24 | |
| 9 |
 Excel Formula Efficiency 9: Faster Running Total Formula
|
2:15 | 2009-02-24 | |
| 10 |
 Excel Formula Efficiency 10: Automatic & Manual Calculation
|
2:48 | 2009-02-24 | |
| 11 |
 Excel Formula Efficiency 11: Pivot Table Faster Than Formula
|
6:00 | 2009-02-24 | |
| 12 |
 Excel Formula Efficiency 12: Fastest Formula In Excel
|
4:59 | 2009-02-24 |
No videos match that filter.
Embed a badge
Show the watch time in a README or course description — it links back here and updates itself
Markdown
[](https://playlistduration.com/playlist/PL5A00E96A13097B0A)HTML
<a href="https://playlistduration.com/playlist/PL5A00E96A13097B0A"><img src="https://playlistduration.com/badge/playlist/PL5A00E96A13097B0A.svg" alt="Watch time: 1h 12m · 12 videos" width="203" height="20"></a>Add ?speed=1.5 to the image URL for the time at that speed, ?label=Course to change the left text, or ?style=flat-square for square corners.
Want the numbers themselves? GET https://playlistduration.com/api/v1/playlist/PL5A00E96A13097B0A returns them as JSON — free, no key. API docs →
Data from the YouTube Data API as of 2026-09-22 (cached). Private or deleted videos are excluded from totals.