Coverting xlsx Files

I have a file in xlsx format. It is a single sheet ie worksheet rather than workbook. I would like to manipulate it in RISC OS. I have converted it to xls, CSV, and txt files but none will load into Eureka.

Can anyone kindly suggest how I can get it into Eureka.

Did a quick search and found this

https://convertio.co/xlsx-csv/

Not tried it as I don’t have any xlsx files

You could try the free version of Fireworkz on RISC OS or !ViewXLS, which apparently can now handle XLSX files and converts them to XLS.

Thanks to Kevin. I saved the xlsx file as a CSV but it would not load into Eureka.

Thanks to Chris. I have the latest version of Fireworkz and converted the file to xls which loaded successfully into Eureka. (Using MSWord I saved the file in xls format but it would not load into Eureka.)

Maybe ViewXLS is also usable for you.