Add-in needed: date sorting

[Rollercoaster]

Hello,
I have a client bases in different files with identical pages inside. One column (L) is the date of next call. I must collect data from from all files and sheets that have data in the L-column and arrange them in one sheet in ascending order.
Is there a ready add-in for doing this, please?
Thank you so much.

[Olly]

Power Query could do this easily. Hard to provide an exact solution without seeing your file structure: Attach a sample workbook. Make sure there is just enough data to demonstrate your need. Include a BEFORE sheet and an AFTER sheet in the workbook if needed to show the process you're trying to complete or automate. Make sure your desired results are shown, mock them up manually if necessary.

Remember to desensitize the data.

Click on GO ADVANCED and then scroll down to Manage Attachments to open the upload window.