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New Post: phpExcel fails to save large sheet with styles and data validation

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Well, can you give me some pointers on how to actually find out what the problem is? There are no error logs. Is there something like debug mode?

I said that it probably isn't a memory problem because I don't get the out of memory error. There were several times when I tried to export all the data, and the script was terminating giving me something like "memory exhausted: tried to allocate * bytes ..." error.

By the way, I was able to speed things up by adding all the data validation on ranges of cell after the data has been populated. Also did the same thing with the styles (where possible). But still no improvement as far as volume of the data goes. Now I am exporting faster but still the same volume of data.

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