How to deal with this file?

Hello there,

My apologies for asking the following questions which might sound silly to all knowledgeable people.

We received a file like the one attached in order to update our TMs. 

2 issues: 1 a lof of tags

2 the next file we are receiving will contain yet other tags.

What is the best way to proceed? To eliminate the tags from the Excel file and create a tag-free TM?

 In this case how can we handle the following text which will contain tags as well?6355.test file.xlsx

Or shall we use REGEXx (which I have never used, but hey there is always a first time)?

I hope it is clear. We use SDL 2017.

Thanks in advance for your help.

Debora

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