>>>>>I might be wrong, but I thought there was a tool that allows importing XLS files without having Excel installed?
>>>>
>>>>Unzip the xlsx, and then in the xl subfolder there's sheet1.xml, sheet2.xml etc. Then read the xml and get the values.
>>>
>>>PMFJI, but how do you Unzip an xlsx file? I am using legacy pkzip25.exe but I can't figure what you mean.
>>
>>I tried 7-zip on a few .xlsx files, and they all "opened up".
>
>Thank you. I suppose I will need to buy the 7-zip.

I'm pretty sure that you can do it with almost any zip-programs.