For example: Reader Tim Asks: This seems like it would be so easy yet when you look around on-line the answers are all full of VBA scripts and custom code. Well then watch this: The first thing you need to do is enable the Developer Tab in Excel.
I assume you just want someone using the spreadsheet to be able to select a cell, have a calendar drop down and then populate the field with whatever date the person chooses. Now you have the developer tab with all the controls for forms, xml, code, etc.
Time of Day Drop-Down List like Outlook has in its New Appointment window I was able to successfully complete all your instructions until the following instruction: Here’s where it all comes together. The link to the spreadsheet you used does not work: Excel Drop Down Date Example (12k) So I was unable to see how yours displayed.Go to the developer tab and select Insert, followed by the little Pink Floyd-esque More Controls icon.Scroll through the list of controls and look what’s available.This should be few lines of code describing how can I read current cell, update his value and take into consideration the file might not be exist, but if it does exist and open, it will just update the file without giving the notification the file is already exist. do this while the excel sheet can be still open wild. If the file doesn't exist it will create a new one. connect to an excel file, check if it exist, if not create one 2. I already visited the following places: Updating an excel document programmatically Update specific cell of excel file using oledb I used the following code: I don't get it. You've got your TO-DO list and it sounds like you can do it, so what is your question? Also just use the Object Model, dont bother using linq using the Open XML would be a much better choice..