Excel CSV file with more than 1 048 576 rows of data

Question

I have been given a CSV file with more than the MAX Excel can handle  and I really need to be able to see all the data  I understand and have tried the method of  splitting  it  but it doesnt work   Some background  The CSV file is an Excel CSV file  and the person who gave the file has said there are about 2m rows of data   When I import it into Excel  I get data up to row 1 048 576  then re-import it in a new tab starting at row 1 048 577 in the data  but it only gives me one row  and I know for a fact that there should be more  not only because of the fact that  the person  said there are more than 2 million  but because of the information in the last few sets of rows   I thought that maybe the reason for this happening is because I have been provided the CSV file as an Excel CSV file  and so all the information past 1 048 576 is lost        DO I need to ask for a file in an SQL database format

User · Answer

I would suggest to load the  CSV file in MS-Access   With MS-Excel you can then create a data connection to this source  without actual loading the records in a worksheet  and create a connected pivot table  You then can have virtually unlimited number of lines in your table  depending on processor and memory  I have now 15 mln lines with 3 Gb Memory    Additional advantage is that you can now create an aggregate view in MS-Access  In this way you can create overviews from hundreds of millions of lines and then view them in MS-Excel  beware of the 2Gb limitation of NTFS files in 32 bits OS

User · Answer

Use MS Access  I have a file of 2 673 404 records  It will not open in notepad   and excel will not load more than 1 048 576 records  It is tab delimited since I exported the data from a mysql database and I need it in csv format  So I imported it into Access  Change the file extension to  txt so MS Access will take you through the import wizard   MS Access will link to your file so for the database to stay intact keep the csv file

User · Answer

I found this subject researching  There is a way to copy all this data to an Excel Datasheet   I have this problem before with a 50 million line CSV file  If there is any format  additional code could be included  Try this   Sub ReadCSVFiles    Dim i  j As Double Dim UserFileName As String Dim strTextLine As String Dim iFile As Integer  iFile   FreeFile  UserFileName   Application GetOpenFilename Open UserFileName For Input As  iFile i   1 j   1 Check   False  Do Until EOF 1      Line Input  1  strTextLine     If i  gt   1048576 Then         i   1         j   j   1     Else         Sheets 1  Cells i  j    strTextLine         i   i   1     End If Loop Close  iFile End Sub

User · Answer

Split the CSV into two files in Notepad  It s a pain  but you can just edit each of them individually in Excel after that

User · Answer

I m surprised no one mentioned Microsoft Query   You can simply request data from the large CSV file as you need it by querying only that which you need   Querying is setup like how you filter a table in Excel   Better yet  if one is open to installing the Power Query add-in  it s super simple and quick  Note  Power Query is an add-in for 2010 and 2013 but comes with 2016

User · Answer

You should try delimit it can open up to 2 billion rows and 2 million columns very quickly has a free 15 day trial too  Does the job for me

User · Answer

You can use PowerPivot to work with files of up to 2GB  which will be enough for your needs

User · Answer

The best way to handle this  with ease and no additional software  is with Excel - but using Powerpivot  which has MSFT Power Query embedded   Simply create a new Power Pivot data model that attaches to your large csv or text file  You will then be able to import multi-million rows into memory using the embedded X-Velocity  in-memory compression  engine  The Excel sheet limit is not applicable - as the X-Velocity engine puts everything up in RAM in compressed form  I have loaded 15 million rows and filtered at will using this technique  Hope this helps someone    - Jaycee

User · Answer

Excel 2007  is limited to somewhat over 1 million rows    2 20 to be precise   so it will never load your 2M line file   I think that the technique you refer to as splitting is the built-in thing Excel has  but afaik that only works for width problems  not for length problems   The really easiest way I see right away is to use some file splitting tool - there s tons of  em and use that to load the resulting partial csv files into multiple worksheets   ps   excel csv files  don t exist  there are only files produced by Excel that use one of the formats commonly referred to as csv files

User · Answer

DO I need to ask for a file in an SQL database format   YES     Use a database  is the best option for this problem   Excel 2010 specifications

User · Answer

First you want to change the file format from csv to txt   That is simple to do  just edit the file name and change csv to txt   Windows will give you warning about possibly corrupting the data  but it is fine  just click ok    Then make a copy of the txt file so that now you have two files both with 2 millions rows of data   Then open up the first txt file and delete the second million rows and save the file   Then open the second txt file and delete the first million rows and save the file   Now change the two files back to csv the same way you changed them to txt originally

User · Answer

If you have Matlab  you can open large CSV  or TXT  files via its import facility  The tool gives you various import format options including tables  column vectors  numeric matrix  etc  However  with Matlab being an interpreter package  it does take its own time to import such a large file and I was able to import one with more than 2 million rows in about 10 minutes   The tool is accessible via Matlab s Home tab by clicking on the  Import Data  button  An example image of a large file upload is shown below   Once imported  the data appears on the right-hand-side Workspace  which can then be double-clicked in an Excel-like format and even be plotted in different formats

User · Answer

I was able to edit a large 17GB csv file in Sublime Text without issue  line numbering makes it a lot easier to keep track of manual splitting   and then dump it into Excel in chunks smaller than 1 048 576 lines  Simple and quite quick - less faffy than researching into  installing and learning bespoke solutions  Quick and dirty  but it works

User · Answer

Try PowerPivot from Microsoft  Here you can find a step by step tutorial  It worked for my 4M  rows

User · Answer

You can try to download and install TheGun Text Editor  Which can help you to open large csv file easily  You can check detailed article here https   developingdaily com article how-to what-is-csv-file-and-how-to-open-a-large-csv-file 82

[excel] Excel CSV. file with more than 1,048,576 rows of data

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