I had Sequel Pro installed so I decided to give this method an attempt. Many database management programs give you the ability to import a CSV file. Like I said earlier in the post, I desired a free solution so I kept researching. It’s a great solution if you don’t mind paying. The paid plans support up to 20 million rows. If your data is column-heavy, this may be a great solution. They have a free plan that has a limit of 5 million rows. They built a web tool to solve this exact problem. I found a great SaaS solution for the problem, called CSV Explorer. This is based on my memory from several months ago, I may test to get some better data around when it starts to crash. However, it definitely started getting really slow and crashing with files greater than a hundred megabytes. I was hoping this would be my answer to manipulating large CSVs. Google released a handy tool now called OpenRefine that enables lots of handy data manipulation operations. Additionally, Excel’s file size limit appears to be 2 gigabytes, so it won’t work well for anything larger than that. Typically, opening large CSVs is a relatively rare occurrence unless your a data analyst, so I tried to find a free solution that would work well. Excel for Mac performed well but it is a paid solution so I did not consider it viable for many developers. Google Sheets worked for some files but would tend to crash or hang past a certain file size. It has a hard row limit that seemed to be independent of file size. If you would like to skip the story and go straight to the best free solution, please click here. I’m using a 2018 Macbook Pro with a 2.6 GHz 6-core i7 and 16 GB of RAM. In this post, I’ve outlined the different ways I’ve tried to manipulate large CSVs and their results. A good text editor can open these large CSVs but you lose spreadsheet capabilities like rearranging columns and filtering data. I set out to figure out how to open and manipulate these files in a free and somewhat accessible way that was fast and didn’t risk crashes.Īs a software engineer with a history of supporting marketing teams, I often encounter extremely large datasets including customer segment exports or analytics event logs that can be larger than a gigabyte. Have you ever struggled to open and manipulate a large CSV file on a Mac? 100MB? 1 gigabyte or greater? Extremely large CSVs bring most spreadsheet utilities to a halt or the computer. How To Open & Manipulate Large (>100MB) CSV Files On A Mac
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