If text is text-Master.xlsx contains those that are unbold in Text.xlsx, then replace them to the one in bold.
See attached for example.
the text will always have 4 characters, and the characters is alpha-numeric. It can have alphabets first followed by numbers or viceversa. (see text data that i show in "Text.xlsx" row 2 to 18)
the text data that i show in "Text.xlsx" show from row 21 and onwards is just for illustration purposes. The concept of alpha-numeric still follow and that whatever appears before the bold text will be replaced by the bold text. Each grouping is separated by 2 rows. The first grouping is from row 2 to row 12 then row 15 to row 18 and then row 21 to 25 etc.