Need Macro To Insert Current Date & Time Into Selected C

Hello, please help me out with this one.

So I am at work workin on this report and I need a function that will make Excel automatically insert the today's date in a cell (let's say D90) when I fill the content of another cell (for example C90) and the that will be inserted will never change. I tried to use the =TODAY( ) function but it keeps updating the date in the cell to the current date if i reopen the worksheet 2 days later. I need the cell to keep in the cell the date of the day when I filled in the content of cell C90 and do not updated it every time i open the document to the actual date.. Thanks in advance!!

I have a template that automatically populates the date field with the
current date when opened, using today(). Users then Save As to have an
archive copy of their spreadsheet. However, when they go back to access
their saved sheet, the date changes from the created date to the current
date. How do I stop this in Excel?

I know that Word lets you do this by changing the code from {DATE} to
{CREATEDATE}, but I can't find a similar setting in Excel.

Please help and thank you!

I need to insert a "." into a column of cells. What is the best way to do this?

Example: Existing data 1000UG01
Needs to be 1000UG.01

Existing cells are all the same length and the "." needs to be inserted in the same place.

Thanks in advance for any help.

I have a VBMacro Excel file loaded on a Server that numerous people access. A Macro in this file creates a Copy of a specific Sheet within the Active Workbook and I want to Save it to the individual's Desktop.

How do I find out what the current User's desktop folder path is each time the Marco is run by a different User?

Example User's path: 'C:\Documents and Settings\jfarc\Desktop'

Where 'jfarc' is the name of the current User which, will of course change with every different User that runs the Macro.

Also, is there a way to pull out of Excel what is the current User's 'Options | General | Default File Location' entry? Which may differ from the above directory.

I am familiar with and use the following coding for Opening/Saving files to the current directory of the opened workbook, but it only gives the path of the existing Excel workbook and not the current User's Directory Path:

Dim wbThis As Workbook
Set wbThis = ThisWorkbook
ChDir wbThis.Path

Hello, I am pretty new to excel programming/messing around so I'll refer to those who are much wiser than I am. I am trying to set up a form for work, in this form I want to have a page with a bunch of cells pre-sized. What I want to do is when I insert a picture from a job site, that when this picture gets inserted, it will automatically resize to fit within the cell. I don't have time to manually resize dozens of pictures and if I could get this to work it would be awesome! I tried to search for an answer using the search function, but I kept getting a fatal error about allowable memory? Thanks in advance for you help!