I have tried editing the excel file using following lines
wb = openpyxl.load_workbook('test.xlsx') wb.save('here.xlsx')
Lines above do work fine, and file is being saved
But when I try opening the file test.xlsx on Mac 10.6.8 using Windows Excel 14.0.0 I keep on getting error "File cant be opened. Wrong format... corrupted file"
If I use Open Office (on Mac) to open saved file text.xlsx, it works without any errors