Is reading CSV faster than XLSX?

Is CSV faster than XLSX?

Comparing CSV vs Xlsx, CSV files are faster and also consumes less memory whereas Excel consumes more memory while importing data. Comparing CSV vs Excel, CSV files can be opened with any text editor in windows while Excel files can't be opened with text editors.

Why CSV is faster than Excel?

Excel is more superior when compared with the CSV file format; thus, CSV consumes less amount of file size when the user is importing data; it is a much faster format compared to excel. CSV does not manipulate data and stores it as-is. Excel also allows the user the add-in feature.

Should I use CSV or XLSX?

Although Excel can read the fileformat and you can use formulas in it, you cannot save the formulas in the sheet. Excel will only save the result of the calculation. Where an Excel workbook can have more sheets, a CSV has only one sheet. So always save it as an xlsx to make it reusable.

Which is lighter CSV or XLSX?

A CSV file will often be larger than the XLSX it was created from. This is because in XLSX is a actually a compressed (zipped) file - you can unzip it with a standard compression tool and check it out for yourself. You will see smaller XLSX files if there is a lot of repeat data.