bilingual Excel error message

I receive Excel files from a customer which require the use of the filetype Bilingual Excel to check string length limitations, but I cannot process them because I get this error

I have been able to find out the cause of this error, it is the colour used for part of the text in Excel (in this case [ENTER])

This is the file with that contains this single cell in A1

Trados does not like this colour.xlsx

A few additional remarks:

- if I use the standard Excel filetype I get no error

- if I change the colour to a standard green (see below) I get no error

Trados likes this colour.xlsx

Replacing all the occurrences of the colour not liked by Bilingual Excel requires too much time.

Is there a solution?