how to open a large text file in windows

' > dummy.txtįor /L %i in (1,1,21) do type dummy.txt > dummy. The second command, runs in a loop for 24 times, and each times doubles the size of the file, by appending it to itself.Ĭreate a 100MB file with real data : echo 'This is just a sample line appended to create a big file. The first command(echo…) creates the file dummy.txt with 64 bytes. ' > dummy.txtįor /L %i in (1,1,24) do type dummy.txt > dummy.txt By default, EmEditor uses temporary files when it opens a file larger than 300 MB. echo 'This is just a sample line appended to create a big file. When you ask it to open a file over a certain size (you choose the size), EmEditor will automatically start using temporary disk space rather than clogging up your memory, unlike most other text editors, which try to keep the whole file in memory and ultimately fail. If you want to create 1 GB file you need to change the second command as below. The above commands create a 1 MB file dummy.txt within few seconds. (Run the above two commands one after another or you can add them to a batch file.) ' > dummy.txtįor /L %i in (1,1,14) do type dummy.txt > dummy.txt echo 'This is just a sample line appended to create a big file. If you want to create a file with real data then you can use the below command line script.

Note that the above command creates a sparse file which does not have any real data.

How to open a large text file in windows