Need help with macro for 2 worksheets

Hello,

I've seen examples close to what I need, but I'm not an experienced macro person and I don't know how to tweak them to get what I want.

I have a spreadsheet created periodically that is used for tasking. When someone has worked on an item, they put an X in column B of that row. The next week a new spreadsheet is created. It may or may not have the same rows as the previous week. Some rows will not be on it, but it will also have new rows that are not on the old spreadsheet.

I want to add an "X" to the new spreadsheet if the row exists (and the first spreadsheet has an "X" in it).

I don't care if the second sheet is updated or if a new worksheet is created. I just need all the rows of the second sheet and col B updated if it has an X in the first sheet.

I really appreciate your help!

Thanks,