You can copy/paste the original language label column in e.g. Google translate and then copy/paste the translation back into your XLS forms’ target language label column.
For Google translate you have to keep in mind that there’s a limit of 5000 characters per translation. So you have to do it section-wise.
If you use to DeepL Pro you there should be no limit.
Another way would be having a cleaned XLS form that only contains the original language label column. You can translate the whole file using Google Translate or DeepL and paste the result in your target langauge column in your master XLS form.
In most cases Google Translate and DeepL even correctly handle markdown and HTML formatting tags (except when translating from e.g. english to arabic, where the reversed writing direction makes it tricky and will require manual adjustment.)
Still not an automatized solution, but much faster than doing this line by line.
