Generate file size is larger than the one with saved with Excel about writexl HOT 9 CLOSED

Please provide a reproducible example of the file that you generated.

from writexl.

airlines <- readr::read_csv(file="https://www.dropbox.com/s/xkznuhtokjmjomh/airline_delay_2016_09.csv?dl=1")
writexl::write_xlsx(airlines, path='~//Downloads/text.xlsx', col_names=TRUE);

This generates 39.3MB xlsx file. But if you open it with Excel or Number and re-saved it as Excel without changing anything, the file reduced to 4.7MB

from writexl.

I cannot reproduce this problem. If I opentest.xlsx in excel and then resave it, the size actually increases to 41.4MB. I'm using excel 2016 for mac (v15.41).

from writexl.

I also cannot reproduce this problem. Resaving it in various formats with Excel 2013 for PC (v14.0760):

• xlsx = 41 MB
• xlsb = 18 MB
• csv = 40 MB
• csv zipped = 7.9 MB
• xls = 16 MB (which truncates the data to 65536 rows)

from writexl.

ok, could you please try this?

1. On Mac, with Numbers open the xlsx file generated with writexl::write_xlsx
2. Without changing anything, export as Excel.

Then you'll get xlsx file with 4.7MB. Here is the xlsx file.

https://www.dropbox.com/s/pgqf0fzn682g2od/test-reduced.xlsx?dl=0

from writexl.

@hidekoji This is what happens for me.

1. Download the file from dropbox, which is 4.6 MB.
2. Import it into R with readxl.
3. Write it to a new xlsx file with writexl::write_xlsx, which creates a 5.1 MB file.
4. Open that 5.1 MB file in Excel 2013 for PC and resave it, which creates a 6.0 MB file.

Are you using the lateset version of writexl?

from writexl.

Finally, no answer to this question? I have the same issue. I download a .xlsx file, size 500KB, after opening and saving it without any changes the size increase at 1400KB.
What can I do?

Thanks for any kind of help

from writexl.

Can you provide an example file and the exact code that you run, so that we can test the problem?

from writexl.

I think this issue should be closed.

The underlying libxlsxwriter library specifically aims to produce xlsx file that are the same as the files produced by Excel. There may be differences in overall size caused by the zip library and compression level but these shouldn't be anything other than +/- 10%. Also, the same mechanism is used in the libxlsxwriter sister libraries of XlsxWriter in Python and Excel::Writer::XLSX in Perl and this issue is never reported there.

Finally, I tried to reproduce with the the file provided by @hidekoji above and cannot:

4.5M  test-reduced.xlsx    # Original
6.3M  test-reduced2.xlsx   # Resaved in Excel 2011
4.5M  test-reduced3.xlsx   # Opened in Numbers and reserved as an xlsx file

Other people in the thread have also pointed out that they cannot reproduce this so I think it should be closed.

from writexl.