Greetings,
I wrote this code to convert csv files to xlsx which worked well for the first set of about 100 files. I just got a second batch from our vendor and I tried converting them but am now getting the "Excel cannot open the file 'SomeName.xlsx' because the file format or file extension is not valid. Verify that the files has not been corrupted and the file extension matches the format of the file." Not sure what broke. Please help. I would also be open to code that can convert all the csv files in the folder to xlsx. But that is not a priority.
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