I may be missing something here, but have you checked the "Number Formats" in your TM?  That's where I would start, anyway.  You can reach them by opening the file, then clicking on Project Settings, then selecting your TM in "Translation Memory and Automated Translation", then clicking on the Settings button:

Then, select Language Resources, and click on the "Default" under the Target Language:

There, you can set the required thousand and decimal separator:

You might need to check the source language setting as well, to make sure it recognises what you're starting with, of course.  

If you set those values in your TM when you create it, rather than in Project Settings, then it will remember them each time you use it - even when you upgrade Studio in future.

Hope that answers your question - if not, could you elaborate a bit, please?

Rob

I may be missing something here, but have you checked the "Number Formats" in your TM?  That's where I would start, anyway.  You can reach them by opening the file, then clicking on Project Settings, then selecting your TM in "Translation Memory and Automated Translation", then clicking on the Settings button:

Then, select Language Resources, and click on the "Default" under the Target Language:

There, you can set the required thousand and decimal separator:

You might need to check the source language setting as well, to make sure it recognises what you're starting with, of course.  

If you set those values in your TM when you create it, rather than in Project Settings, then it will remember them each time you use it - even when you upgrade Studio in future.

Hope that answers your question - if not, could you elaborate a bit, please?

Rob