Convert Microsoft Excel XLS to XLSX in Java DEV Community
Xlsx File Format Or File Extension Is Not Valid. Web when you open a file in excel, you get an message that the file name extension doesn't match the actual file format. Web i'm getting excel cannot open the file.because the file format or file extension is not valid.
Web when you open a file in excel, you get an message that the file name extension doesn't match the actual file format. Web i'm getting excel cannot open the file.because the file format or file extension is not valid.
Web i'm getting excel cannot open the file.because the file format or file extension is not valid. Web when you open a file in excel, you get an message that the file name extension doesn't match the actual file format. Web i'm getting excel cannot open the file.because the file format or file extension is not valid.
