Converting .mat files in multiple folders into an excel file

Hello, I have 63 folders with .mat files in the same directory. All 63 folders have a folder name '1' which has a .mat file. I am trying create a loop to convert the information in all .mat files in one excel spreadsheet. How can I make a loop that takes the 63 .mat file from different folders and convert the mat files into one excel?

[Rik]

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Since you added a minor detail, I will a minor detail as well:

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