list of very useful Excel tricks related to text manipulation, date and time, and rounding

Here's a list of basic Excel formulas related to text manipulation, date and time, and rounding:
*Text Manipulation*
1. **LEFT**: Returns a specified number of characters from the left side of a text string.
Example: `=LEFT(A1, 5)` returns the first 5 characters of the text in cell A1.
2. **RIGHT**: Returns a specified number of characters from the right side of a text string.
Example: `=RIGHT(A1, 5)` returns the last 5 characters of the text in cell A1.
3. **UPPER**: Converts a text string to uppercase.
Example: `=UPPER(A1)` returns the text in cell A1 in uppercase.
4. **LOWER**: Converts a text string to lowercase.
Example: `=LOWER(A1)` returns the text in cell A1 in lowercase.
5. **PROPER**: Converts a text string to proper case (first letter capitalized, rest in lowercase).
Example: `=PROPER(A1)` returns the text in cell A1 with proper case.
*Date and Time*
1. **MONTH**: Returns the month of a date as a number (1-12).
Example: `=MONTH(A1)` returns the month of the date in cell A1.
2. **YEAR**: Returns the year of a date as a number.
Example: `=YEAR(A1)` returns the year of the date in cell A1.
3. **DAY**: Returns the day of a date as a number (1-31).
Example: `=DAY(A1)` returns the day of the date in cell A1.
4. **WEEKNUMBER**: Returns the week number of a date as a number (1-53).
Example: `=WEEKNUMBER(A1)` returns the week number of the date in cell A1.
*Rounding*
1. **ROUND**: Rounds a number to a specified number of decimal places.
Example: `=ROUND(A1, 2)` rounds the value in cell A1 to 2 decimal places.
2. **ROUNDDOWN**: Rounds a number down to a specified number of decimal places.
Example: `=ROUNDDOWN(A1, 2)` rounds down the value in cell A1 to 2 decimal places.
3. **ROUNUP**: Rounds a number up to a specified number of decimal places.
Example: `=ROUNUP(A1, 2)` rounds up the value in cell A1 to 2 decimal places.
*Integer*
1. **INT**: Returns the integer part of a number (truncates decimal part).
Example: `=INT(A1)` returns the integer part of the value in cell A1.
*Current Date*
You can use the following functions to get the current date:
* `TODAY()`: Returns the current date as a serial date number.
* `NOW()`: Returns the current date and time as a serial date and time number.
*UA-cam Description*
You can use Excel formulas to extract information from UA-cam video titles or descriptions, such as:
* Extracting specific keywords or phrases from video titles or descriptions using text manipulation formulas like LEFT, RIGHT, UPPER, and LOWER.
* Counting the number of occurrences of specific keywords or phrases using COUNTIF or COUNTIFS formulas.
Note that these formulas require you to have access to UA-cam data, such as video titles and descriptions, which may be stored in an external data source or obtained through web scraping or API calls.