Xlsxwriter(0.7.3-1 ): File is corrupt and therefore cannot be opened. (SIZE: 930 MB)

Hi

I'm new to coding and ubuntu 16.04. I'm writing a file using xlsxwriter with workbook.use_zip64(). The code generates files of various sizes depending on input.

But for one case the written file is not being opened by liber calc. I have checked the permissible limits if rows columns and max number of cells and all is way inside the max limit. Liber declares the file as corrupt and reasons it to be a consequence of data manipulation or structural document damage, it then tries to repair it finally displaying unsuccessful error before closing without opening the document.

Apologies for my inappropriate English.

Sincerely