Hi, thanks for your replies.
I have tried a number of different file types but there does'nt seem to be a patern. Some word excel and PDF files open but not others. The word files often come up with file conversion errors and don't work on western microsoft default or any other codex. The PDF silimarly and get the file compatability pop up that I get from docx 368 file types which i usually overcome with compatabilty or open with . I am still using my old microsoft office software as as I dont like the new microsoft upgardes edge, outlook etc but do you think if I upgrade to 365 this would allow me to open these docs. Just to be clear the files that I am trying to open were saved with the same application I am using now.