Which is better XLSX or CSV?

Which is smaller 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.

Is .XLSX a CSV file?

Excel and CSV files are used for storing data in tabular format. ... Key Differences Between CSV and XLSX Files.A comma-separated value (.csv) file …An Excel (.xlsx) file …… is stored in .csv format and can be opened with text editors (such as Notepad).… has an .xls or .xlsx format and is opened by Excel.

Is reading CSV faster than XLSX?

Idea #2: Use CSVs rather than Excel Files xlsx) from our ERP/System/SAP. Importing csv files in Python is 100x faster than Excel files. We can now load these files in 0.63 seconds. That's nearly 10 times faster!