I tried using openpyxl library to read and write data in excel. But later did I know that I need to manipulate an excel binary worksheet. openpyxl doesn't support xlsb.
Is there any other libraries that I can use to be able to read and write data in xlsb without changing any format of the excel?
The requirement is, as much as possible:
Append data at the last row (Don't rewrite the whole data as it will affect the runtime of script).
Don't convert the xlsb
Thank you in advance.
I used xlwings library. Image will be kept and I can work with .xlsb.
Related
I am using Read Delimited Spreadsheet.vi in LabVIEW and need to read data from other than the first sheet. How do I tell LabVIEW that want to use other than the first sheet?
CSV files are plain text files and there are no multiple sheets inside.
Sheets are present within Excel files, but this function "Read Delimiter Spreadsheet" does not work with these.
Unfortunately LabVIEW still doesn't have built-in support for reading Excel files as far as I know, although it can write them with the Save to Measurement File express VI.
There are third-party toolkits available for reading Excel files in LabVIEW, or you might be able to use some Python code with openpyxl or pandas.
I suppose you need to read a Excel file (.xls or .xlsx) and not a CSV file (as suggested by Mateusz the CSV file doesn't have sheets).
Anyway, in LabVIEW you can read, write, manipulate and do any other operations on Excel files by using ActiveX. It is verbose but you can use it as any other LabVIEW library.
Look this post or the built-in examples in your LabVIEW environment
As mentioned above, you can use Excel to read a spreadsheet. Alternately, you can use LibreOffice.
LibreOffice to LV library
I need syntax in SPSS or excel to export data without #null values.
How can this be achieved?
I typically save as CSV and then in excel save as .xlsx. All missing values are then allocated a space which I accept as representing sysmis values.
As far as I know, starting with SPSS 20, IBM decided that #NULL!is the Excel output of empty cells of numeric variables. You'll need to clean that manually in Excel (via Replace - CTRL-H), or write an Excel macro speed this up;
Alternatively, you could use an older version of SPSS, although I don't think they are commercially available anymore;
Or you could export as CSV and then import the CSV into Excel.
Does anyone know how to solve my problem?
Im able to import a Excel File into my Matlab GUI, the problem is the file exist in a few sheets combined together (example: monthly data). I'm trying to import the data from different sheets on the excel file but was not able to (anything from the 2nd sheet i can't import). Anyone knows of a code to import the data?
I guess you used xlsread in order to read data from an XLS file. If you do not add arguments to the function, it will only read the first worksheet. Please check the xlsread documentation by typing doc xlsread in your matlab session.
You can see that you can specify the worksheet with the following code :
num = xlsread(filename,sheet)
I'm processing xlsx files in PHP. When I create xlsx file using openoffice with just one filled cell, the spreadsheet already has 65536 rows itself. It looks like openoffice stores all cells even if they are empty. Is there any solution I can save only as many rows/columns as they are filled? Because every library for parsing xlsx produces then wrong number of rows so I'm not able to process it correctly. Good solution would be to achieve it directly inside openoffice, or use some external tool/script (*nix based) to clean up such xlsx file if possible.
Here is one solution:
Use OpenTBS to open the XLSX and save it with or without modifications.
OpenTBS is a pure PHP tools whose purpose is to merge data with LibreOffice and Ms Office documents using the technique of templates.
Since its version 1.9.0, OpenTBS can handle with XLSX workbooks made with LibreOffice. Such XLSX workbooks may have an extra row definition which contains a repetition attribute that extends it upon the maximum limit of row number. OpenTBS simply reduce this extra extended row into a single row.
OpenTBS download page
OpenTBS demo
OpenTBS doc
How can i use the same macro in both the XLS and XLSX formats?
Is there anyhthing to be added in the XLSX format. i have written a small macro in XLSX (it has last column XFD) i want to use it in the XLS (it has last column as IV) .Is there anything to be changed?
This question is not about converting the file formats.
XLSX provides a broader set of formulas and also VBA functionality. Additionally, XLSX expands the row/column restriction that exists before Excel 2007 (from 256 columns to 16,384).
If your macros are written using up to column 16,384 (XFD), you're going to have to perform the calculations in chunks to make them fit within the 256 column (IV) restriction of Excel 2003. If you're using variables and not writing everything to a sheet, then there should be no problem (barring running out of memory).
Without more detail, it's difficult to tell whether you're using a set of functions from Excel 2007 that may not be supported in Excel 2003.
Which format was it written first? normally it should work in both formats of excel. As you are referring to last cell of both formats, it seems to have a code level issue than a version lavel.