Re: VinceH : People still use this!?
"You are a bit out of date. .docx and .xlsx are the de facto standards now."
There were several formats under the name of ".doc" and ".xls" (as well as their gzipped *x derivatives)
That's the part about moving targets that annoys.
By the way, Libre copes quite happily with 2 and 3 decade old WordStar 3.3 or Wordperfect docs I still have. MS office...... not so well.