I keep putting a custom format as follows: yyyy-mm-dd
But if i save the file and reopen it goes back to dd-mm-yyyy
It works fine in xlsx, but i need it in csv and if i try converting it from xlsx to csv, same thing happens
Unfortunately there are no style or format settings for CSV file. A CSV file is simply a text seperated by comma or an another delimiter. If you opened up the CSV file in notepad or notepad++ you can see the dates are correctly formatted.
If you want to retain settings, you can try saving it an XML file.
When you open a CSV file directly in Excel, Excel determines the format of the cell based on its interpretation of the text, which is similar to its interpretation of data that enter manually.
Most of the time, the cell format is General. In some cases, it is Short Date, Time, Accounting or Percentage.
Also note that the date or time appearance in the CSV file should be consistent with the Regional and Language Options settings on the computer where the CSV file is opened. Otherwise, Excel interprets it as text.
If you import the file instead of opening it directly, you can control how Excel interprets the data via setting format settings for dates upon import.
my problem is that as soon as I am saving my excel sheet in csv. the content is not seen as numeric anymore. I can't save it. It's a big problem, because when importing the csv. in R, the numbers are mixed up, because the R doesn't recognize the numbers as ascending numbers.
Seems to me there is an option in saving CSV to save the format as the first line. Without that you will have to specify the format each time manually, unless it happens to guess correctly.
i am exporting data from database to file, which can Excel read and save.
(CSV) I generate csv, with default format (according to RFC 4180, comma delimeter). As expected, stupid excel read all data and place it to one cell.
(CSV with semicolon delimeter), this one excel read fine, but after change some value and press save (CTRL+S), stupid excel saved it to unreadable file (well done!). No delimeters, no string separators. Ok, so i tried to save it as (CSV format with SEMICOLON delimeter), saved file looks ok, but after opening it with excel, error message was showed - INCORRECT FORMAT - no cell found :D really?!
Generating .xsl file in php. It take too much RAM (about 2GB), so it cant be used.
Do you know any good format, which can excel easily open and easily save?
Thanks a lot!
This question is off-topic, but IMHO Excel 2002/2003 XML Format would be the best choice in your circumstances.
The reason for this is that the data in this format is typed - so you will not see numbers misinterpreted as dates, or phone numbers with leading zeros stripped. I am not aware of the kind of problems you describe, so I cannot say for sure how those will be affected.
I produce a report as an CSV file.
When I try to open the file in Excel, it makes an assumption about the data type based on the contents of the cell, and reformats it accordingly.
For example, if the CSV file contains
...,005,...
Then Excel shows it as 5.
Is there a way to override this and display 005?
I would prefer to do something to the file itself, so that the user could just double-click on the CSV file to open it.
I use Excel 2003.
There isn’t an easy way to control the formatting Excel applies when opening a .csv file. However listed below are three approaches that might help.
My preference is the first option.
Option 1 – Change the data in the file
You could change the data in the .csv file as follows ...,=”005”,...
This will be displayed in Excel as ...,005,...
Excel will have kept the data as a formula, but copying the column and using paste special values will get rid of the formula but retain the formatting
Option 2 – Format the data
If it is simply a format issue and all your data in that column has a three digits length. Then open the data in Excel and then format the column containing the data with this custom format 000
Option 3 – Change the file extension to .dif (Data interchange format)
Change the file extension and use the file import wizard to control the formats.
Files with a .dif extension are automatically opened by Excel when double clicked on.
Step by step:
Change the file extension from .csv to .dif
Double click on the file to open it in Excel.
The 'File Import Wizard' will be launched.
Set the 'File type' to 'Delimited' and click on the 'Next' button.
Under Delimiters, tick 'Comma' and click on the 'Next' button.
Click on each column of your data that is displayed and select a 'Column data format'. The column with the value '005' should be formatted as 'Text'.
Click on the finish button, the file will be opened by Excel with the formats that you have specified.
Don't use CSV, use SYLK.
http://en.wikipedia.org/wiki/SYmbolic_LinK_(SYLK)
It gives much more control over formatting, and Excel won't try to guess the type of a field by examining the contents. It looks a bit complicated, but you can get away with using a very small subset.
This works for Microsoft Office 2010, Excel Version 14
I misread the OP's preference "to do something to the file itself." I'm still keeping this for those who want a solution to format the import directly
Open a blank (new) file (File -> New from workbook)
Open the Import Wizard (Data -> From Text)
Select your .csv file and Import
In the dialogue box, choose 'Delimited', and click Next.
Choose your delimiters (uncheck everything but 'comma'), choose your Text qualifiers (likely {None}), click Next
In the Data preview field select the column you want to be text. It should highlight.
In the Column data format field, select 'Text'.
Click finished.
You can simply format your range as Text.
Also here is a nice article on the number formats and how you can program them.
Actually I discovered that, at least starting with Office 2003, you can save an Excel spreadsheet as an XML file.
Thus, I can produce an XML file and when I double-click on it, it'll be opened in Excel.
It provides the same level of control as SYLK, but XML syntax is more intuitive.
Adding a non-breaking space in the cell could help.
For instance:
"firstvalue";"secondvalue";"005 ";"othervalue"
It forces Excel to treat it as a text and the space is not visible.
On Windows you can add a non-breaking space by tiping alt+0160.
See here for more info: http://en.wikipedia.org/wiki/Non-breaking_space
Tried on Excel 2010.
Hope this can help people who still search a quite proper solution for this problem.
I had this issue when exporting CSV data from C# code, and resolved this by prepending the leading zero data with the tab character \t, so the data was interpreted as text rather than numeric in Excel (yet unlike prepending other characters, it wouldn't be seen).
I did like the ="001" approach, but this wouldn't allow exported CSV data to be re-imported again to my C# application without removing all this formatting from the import CSV file (instead I'll just trim the import data).
I believe when you import the file you can select the Column Type. Make it Text instead of Number. I don't have a copy in front of me at the moment to check though.
Load csv into oleDB and force all inferred datatypes to string
i asked the same question and then answerd it with code.
basically when the csv file is loaded the oledb driver makes assumptions, you can tell it what assumptions to make.
My code forces all datatypes to string though ... its very easy to change the schema.
for my purposes i used an xslt to get ti the way i wanted - but i am parsing a wide variety of files.
I know this is an old question, but I have a solution that isn't listed here.
When you produce the csv add a space after the comma but before your value e.g. , 005,.
This worked to prevent auto date formatting in excel 2007 anyway .
The Text Import Wizard method does NOT work when the CSV file being imported has line breaks within a cell. This method handles this scenario(at least with tab delimited data):
Create new Excel file
Ctrl+A to select all cells
In Number Format combobox, select Text
Open tab delimited file in text editor
Select all, copy and paste into Excel
Just add ' before the number in the CSV doc.
This has been driving me crazy all day (since indeed you can't control the Excel column types before opening the CSV file), and this worked for me, using VB.NET and Excel Interop:
'Convert .csv file to .txt file.
FileName = ConvertToText(FileName)
Dim ColumnTypes(,) As Integer = New Integer(,) {{1, xlTextFormat}, _
{2, xlTextFormat}, _
{3, xlGeneralFormat}, _
{4, xlGeneralFormat}, _
{5, xlGeneralFormat}, _
{6, xlGeneralFormat}}
'We are using OpenText() in order to specify the column types.
mxlApp.Workbooks.OpenText(FileName, , , Excel.XlTextParsingType.xlDelimited, , , True, , True, , , , ColumnTypes)
mxlWorkBook = mxlApp.ActiveWorkbook
mxlWorkSheet = CType(mxlApp.ActiveSheet, Excel.Worksheet)
Private Function ConvertToText(ByVal FileName As String) As String
'Convert the .csv file to a .txt file.
'If the file is a text file, we can specify the column types.
'Otherwise, the Codes are first converted to numbers, which loses trailing zeros.
Try
Dim MyReader As New StreamReader(FileName)
Dim NewFileName As String = FileName.Replace(".CSV", ".TXT")
Dim MyWriter As New StreamWriter(NewFileName, False)
Dim strLine As String
Do While Not MyReader.EndOfStream
strLine = MyReader.ReadLine
MyWriter.WriteLine(strLine)
Loop
MyReader.Close()
MyReader.Dispose()
MyWriter.Close()
MyWriter.Dispose()
Return NewFileName
Catch ex As Exception
MsgBox(ex.Message)
Return ""
End Try
End Function
When opening a CSV, you get the text import wizard. At the last step of the wizard, you should be able to import the specific column as text, thereby retaining the '00' prefix. After that you can then format the cell any way that you want.
I tried with with Excel 2007 and it appeared to work.
Well, excel never pops up the wizard for CSV files. If you rename it to .txt, you'll see the wizard when you do a File>Open in Excel the next time.
Put a single quote before the field. Excel will treat it as text, even if it looks like a number.
...,`005,...
EDIT: This is wrong. The apostrophe trick only works when entering data directly into Excel. When you use it in a CSV file, the apostrophe appears in the field, which you don't want.
http://support.microsoft.com/kb/214233