Best Way To Generate A Unique Random Serial Number

I have looked over the forums for information on how to do this, and can not find anything. I have used conditional formatting to identify duplicates in my spreadsheet. I have a unique user ID, which combines the first and last name fields into one. However, in 10,000 there are a number of John Smiths, Joe Adams, etc. With smaller lists, we search manually, and then add a 1, 2, 3, etc to each duplicate to create a unique value for the User ID.

My question is:

Is there a way to check for duplicates, and then automatically add numbers to the duplicate values to make them unique? If so, how can this be done?

So that you will have this:

JohnSmith
JohnSmith2
JohnSmith3
JaneDoe
JaneDoe2
JohnAdams
JohnAdams2
JohnAdams3
JohnAdams4

I think I have done a good job in illustrating what I would like to be able to do, but if there is still something that is unclear, I will post whatever clarification is needed.

Thank you in advance for your help!!

From limited experience I know that excel calculates dates via serial numbers.

I have formulas to add a number of days to a cell containing an entered date and display the resulting new date (ie. 03/01/2011 (c34)+11 = 03/12/2011)

I am seeking to leave resulting formula cell blank until a date is entered in the input cell. Currently when the input cell is empty the formula cell obviously displays 1/11/1900 using the above example.

What conditional format would achieve leaving the formula cell blank until date data in entered into the source cell?

Hopefully a simpler question for your experience level than mine.

I am trying to work out how to calculate the geometric mean of a series of values, some of which are negative, ie. investment returns over a series of years with some negatives.

The Geomean function doesn't work because it only uses positive numbers.

Any help would be greatly appreciated.

Is there a worksheet function that will generate all possible combinations of
a set of given numjbers. For example, 1, 3 and 8 would generate 138, 183,
318, 381, 813, 831 and so on...

Hi there, I have a string of numbers and I would like to add zeros to the end of it.

For example my numbers are formatted like this: 1234 and I would like to add zeros to the end so it looks like this: 123400 (no decimal).

I would do it manually but I have a column of over 2000 different numbers.

Thanks for your help, you guys are great!

dear supervirsor
i would like to know how to change english numbers to arabic number on excel
, where when i change the language from english to arabic the numbers didnt
changed it still in english

when I type a number or letter into a cell and then press enter the cursor
jumps way down the page to what appears to be a random cell. The one i
originaly typed in remains blank. spreadsheet was previously ok this has
just started to happen.

help please
thanks

Hello gurus!

Here's my question...I have a list of numbers and I want to know how many combinations (and what they are) of adding the numbers will equal an amount.
e.g.
List of Numbers
1
2
3
4
5
6
7
8
9
10

Amount to be reached = 12

These are some of the possible combinations to reach 12 :
2+10
3+9
4+8
5+7
3+4+5
6+3+2+1

Is there a function in Excel that will do this for me? I want to know which numbers (i.e. cells) can be added to reach 12. AND, if possible, colorcode the cells added for each combination.

Good luck and thanks!!

Dear Sirs,

Am in need for this solution very badly and what could be a better place than excelforum !

I have an MS Excel File (2007 version) sample file attached, which has name, designation, blood group and so on. The last column is for hyperlinking photographs of individuals.

In the same folder where I have saved this excel file, are lying photographs of individuals. While scanning the photographs, I have saved them serially i.e. 1,2,3 and so on.

In the Excel file, in last column, I have given the respective serial numbers. In order to hyperlink one has to select that particular Cell, press Ctrl K and you automatically go to the folder containing individual photographs, you select that photo and OK.

Problem :

I have to do this hyperlinking one by one and if there 1000 photos, lot of time is wasted.

Solution Needed :

Just in case of excel formula, which we copy and paste, Can I get a command by virtue of which the column titled Photo or column next to it gets automatically Hyperlinked to respective photo WHEN I copy and paste such command to all cells in that column.

Thanks a million and warm regards ::: Jack

i've been trying to figure this out on my own but seem to be hitting road blocks.

i have a column of numbers that we extracted from a database as whole numbers. for instance, 30 should be .30 and 100 should be 1.00. when i try to increase or decrease the decimal point it doesn't allow me to convert it to those positions.

would any one have a tip of how i can easily convert this? there are over 2000 entries in my excel spreadsheet so to do it manually would take a lot of time/effort.

thank you!

I need help writing a formula to add a column of numbers until a value is reached, then start over adding numbers starting at the next cell after the value is reached.

Thanks for any help.

45Romeo

A previous poster explained what I also need; there were no responses,
so I thought I would try again.

Does anyone know of an Excel template--or a small stand-alone
program--that will calculate the interest/principal breakdown when
payments are varied in amount and frequency? Free or low-cost, please.
I need one that will work on my Mac/Office 2004. I will need to print
out periodic reports.

Here is the way the previous poster described it:
"Excel template: Loan Amortization for random/irregular payments,
figures days
between payment dates.
I have a loan with a variable beginning balance and irregular payments
with
annual large payment. (based on collections)
Would like to enter payment and date.
then Excel would figure days since last payment, interest amount,
principal
amount, Ending Principal balance.
And total interest paid, total pricipal paid
If I change the starting principal, excel would recalculate all
entries."

Thanks very much.

Here's my formula... =SUM(S7)-T5

If that number is less than -100, I want it to show as blank.

Any help?

Right now, I'm trying to accomplish this by making a conditional format...meaning when my cell equals less than -100 I make the cell color and font the same (so it looks blank, but its not). When I print it, it still shows the negative value.


Thanks.

Hello everyone, I am new to this forum and have been using excel for about 3 years. I have learned alot but still can not figure out how to make numbers add up in one box like a running total. Meaning, If I have a list and in the list is one cell for each item say like cell a1 is for a can of coke and cell a2 is for a car tire and so on,and i want to keep a running total by adding a number to cell a1 or a2 like say "3 i.e. 3 tires or cans of coke" and later that day i come back and need to add 2 more ......so i want to be able to just click on the cell a1 or a2 and enter the number 2 and the cell would add the number in it to the number im adding to it to show a result of 5 tires or whatever. I am sorry If i am not asking the question in an understandable manor but its the best way I can think to ask it.lol anyways, any help would be appreciated, Thanks in advance.


James

HELP!!

I need to know the formula (if there is one) for Excel to figure all the possible combinations of a given set of numbers that will add up to a specified sum.

In other words, if I give the following numbers 1, 2, 2, 3, 3, 4, 5, 5, 6, 7, 7 - I want Excel to figure all the possible combinations that will add up to 23, and also SHOW ME those combinations, and not just HOW MANY combinations there are.

i.e. one possible combination is 2, 2, 3, 4, 5, 7

Can this be done? What is the formula? I'm having a hard time figuring it out!!

Desperately,
Jenny