similar to: excel 2000: "File Error data may have been lost"

Hello, I''m using the spreadsheet/excel gem to generate an excel sheet that I want user to be able to download it once it''s generated. Please take a look on the below code: @contacts=Contact.find(:all) if @contacts.size>0 file="#{Date.today}_Report.xls" workbook=Spreadsheet::Excel.new("#{RAILS_ROOT}/public/reports/#{file}")

Hi all, There have been quite a few threads in the recent months pertaining to the ability to directly write native Excel (.xls) files from R. For example, exporting R matrices and/or data frames to an Excel file, with perhaps the ability to create multiple tabs (worksheets) within a single file, with one tab/sheet per R object. There exists the xlsReadWrite package on CRAN by Hans-Peter Suter,

I?ve got an Excel workbook with about 30 worksheets. Each worksheet has 10000 rows of data over 30 columns. I?d like to read the data from each worksheet into a dataframe or matrix in R for processing. Normally, I use read.csv when interacting with Excel but I?d rather manipulate a multisheet workbook directly than set about splitting the original workbook and saving down each part as a csv.

Dear All, I have been using RExcel for some time and find two features especially useful: i) The ability to select part of a worksheet and put it into R ii) The way of viewing the code, the output and the alerts in separate panes. The rest of R Excel I don't really use. The major benefit for me is i) as I can use the excel as a sort of fast access database which is convenient to edit. I can

I've created a Perl script that translates Microsoft Excel (.xls) files into comma-delimited text files (.csv) using the Perl Spreadsheet::ParseExcel module. Usage ----- perl xls2csv.pl <excel file> [<output file>] [<worksheet number>] Translate the Microsoft Excel spreadsheet file contained in <excel file> into comma separated value format (CSV) and store in

Hello all, I have a business user who generates monthly reports in MS Excel in a particular format. The data I need is present in different portions of this excel file. Is there a way to read different cells from a particular excel worksheet? i.e., cells b50:d100 in the Inputs worksheet. I am investigating odbcConnectExcel but did not yet see such capability. Appreciate your help. Jeevan

Dear all, I would like to import a range of cells (e.g. F10:K234) from an Excel worksheet to R. I have looked for documentation on RODBC and RDCOMClient but I was not able to find enough information to solve my problem and all the examples I have seen were dealing with an entire worksheet, not a range of cells. Thanks, Jean-Noel Jean-Noel Candau INRA - Unit? de Recherches Foresti?res

Hello, I've been using odbcConnectExcel to connect to a spreadsheet database containing a single worksheet. Unfortunately when I try to access the data R cannot see the table. When I run sqlTables it shows the worksheet as a SYSTEM TABLE instead of as a TABLE that I can access. I am fairly certain that I am do all of the same things I've done in the past when it worked just fine.

As part of my project to put different types of results into worksheets, I would like to be able to put an auto-generated methods section. If I compose in RWinEdt, read into R, and use write.table with a .txt file extension, what I get out has line-breaks that correspond to those I put in in the first place. If I do the same thing but write.xls with .xls extention, I get an Excel worksheet

Hans-Peter and other R developers, How are you? Have you made any progess with embedding Url's in Excel? Well, I have been busy thinking of more things for you to do;) My colleagues in the lab are not R literate, and some are barely computer literate, so I give them everything in Excel workbooks. I have gradually evolved a system such that these workbooks have become compendia of my

Hi list, Is there a R function I can use to extract the worksheet names from an Excel file?? If no, any other automatic ways (not using R) to do this? thanks! ...Tao

Hello list, I am encountering a problem with Excel 2003 on Samba shares. If I open an Excel file, edit a cell and then try to save it, I get a dialog box with a "file may have been modified by another user since" message, with the option to save a new copy, or overwrite the current file. Subsequent saves don't exhibit this behaviour, it occurs only on the first save after opening a

Dear all I use ggplot2 extensively for my plotting routines and rexcel to have the best of two worlds. (RExcel v 1.75 and R (D)Com v. 2.5) I can run my ggplot functions, such as qplot(...), in scratchpad mode, but not in Macro nor Worksheet functions mode. I have tried the following in Macro mode: Call RInterface.RRun("library(ggplot2)") ... Call

> Hi, > > I am new to ruby on rails.I am having problem reading excel files. I > tried using gem ''parseexcel'' but still the error is coming. > Could you please help me with the code and how to use this gem? Is > there any better way to read excel sheets. > > Snippet of Code: > > require ''rubygems'' > require_gem

One can import data from Excel ODBC source, but of course it is user's responsibility to ensure that the data are consistent. Each worksheet in the Excel workbook can be accessed as a table (for example, for Sheet1, you should type "select * from [Sheet1$]". The worksheet should have first row containing the column names, and the data rows should follow (the

Hello R-users, Checking the archives, I recently came across this topic: "export tables to Excel files" (http://r.789695.n4.nabble.com/export-tables-to-Excel-files-td1565679.html#a1565679), and the following interesting references have been proposed: http://rwiki.sciviews.org/doku.php?id=tips:data-io:ms_windows

All, Relatively new R user so this is probably an easy question to answer. I am able to generate a cluster for my dataset using hclust() then ploting the data with plot(). This results in an image with a dendrogram with my sample names along the bottom. Great! However, I now need a way to get that sample order from the image into excel. i.e. sample 7 was on the far left, sample 19 was in

Hi list, I just installed the rcom package and tried to read/give out some values from/to Excel. Altogether it works great... but nevertheless I don't know how the syntax works or in other words: "Which command needs which parameters?" Is there somwhere a manual about this package with good examples? I've read the Package description... but there are not really good

hi, i am using the RODBC package to read excel files using odbcConnectExcel and susequently sqlFetch to read the contents of the file. the file that i use is just a matrix of numbers thats all. no headers and column names. what happens is that the sqlFetch is not reading my first row of numbers. i have tried different combinations of colnames and rownames logical values but that first row is not

I reproduce from memory my exhaustive look into this issue. RODBC uses the Microsoft ODBC DLL's developed by Microsoft. These DLL's perform an automatic determination of column type based on the contents of the first N rows of cells in each column, where N [0,16]. N may be set in the Windows system registry, and there are a few other things that may be set in the system registry which