I would like to extract the entire column from an excel worksheet to a Java array using the Aspose library. How do I do that? In many of the examples, I see how to copy a column/row from one worksheet to another only. Can Aspose extract data?
Yes, data can be easily exported to an Array using the exportArray method, see the sample code for your reference:
Example
// Instantiating a Workbook object
Workbook workbook = new Workbook("Book1.xlsx");
// Accessing the first worksheet in the Excel file
Worksheet worksheet = workbook.getWorksheets().get(0);
// Exporting the contents of 100 rows and 1 column starting from 1st cell (i.e., A1:A100)
// to Array. you may update the method parameters for your needs
Object dataTable[][] = worksheet.getCells().exportArray(0, 0, 100, 1);
// Printing number of rows after exporting worksheet data
System.out.println("No. Of Rows Imported: " + dataTable.length);
.....
PS. I am working as Support developer/ Evangelist at Aspose.
Related
I am trying to display the outcome scores on one Excel sheet into another Excel sheet based on the outcome name and course.
If the text in Sheet1!C2=communication and Sheet1!E2=Comm 2010, then display Sheet1!D2 on Sheet2!B3.
If the text in Sheet1!C4=information* and Sheet1!E4=Commm 3000, then display Sheet1!1D4 on Sheet2!C5.
Need to be able to use Wildcard when checking the text.
If the text in Sheet1!C6=communication and Sheet1!E6=Comm2010, but there is no number in Sheet1!D6, leave Sheet2!B5 blank
I have played around with a few different IF AND formulas, but I can't get the data displayed correctly.
Right now, I am building a pivot table from the data in Sheet1, then taking the table and formatting it to match the table on Sheet1 then using =IF(Pivot!C7="","",Pivot!C7). This works, but building a pivot table for each student and then formatting it to match Sheet1 is a time drain.
I'm really hoping there is a better way to do this.
Thank you!
Since you are compiling outcomes on a per-student basis and not in total it is safe to use the SUMPRODUCT() function:
The formula below is used in B3
=SUMPRODUCT((Sheet1!$E$2:$E$6=Sheet2!B$1)*(Sheet1!$C$2:$C$6=Sheet2!$A3)*(Sheet1!$D$2:$D$6))
and can be copied across and down throughout B3:C4
The formula used in B5 is different, because of the 'wildcard criterion'
=SUMPRODUCT((Sheet1!$E$2:$E$6=Sheet2!B$1)*(LEFT(Sheet1!$C$2:$C$6,11)="Information")*(Sheet1!$D$2:$D$6))
(unless you are using Microsoft 365, having the formula directly suppress 0 values essentially entails doubling it in length so, as an alternative, given the small output range, a custom-number format has been implemented, which effectively doesn't display 0 in a cell where that is the formula result)
Using spreadsheet functions, can we create a new row by copying format properties of another row in the same sheet programtically?
In my excel template, I have some border styles and sum formula at the end of table, can I create a new row in last with that styles copied and summation formula applied?
For example in my template I have some tabular data starting from row 10-15 with some format styles for that rows, can I copy that format and add new row below it?
I am trying to update old excel file with new one with the data by comparing date in two excel files.
Objective is to update the previous dates columns and add new dates found in new excel into the old excel.
Also copy the formatting from old column into new columns that were added.
What I did, I tried to merge the dataframes from two excels. I still do need help on the logic.
Excel Old File
Excel New File
Please someone help in this
The formatting is kind of worth a separate question.
Here's my approach to the merge that i think you are seeking.
In quick summary we use combine_first()
df_old_excel = pd.read_excel(r'C:\temp\Excel_Old_File.xlsx',header =1)
df_new_excel = pd.read_excel(r'C:\temp\Excel_New_File.xlsx',header =1)
df_old_excel = df_old_excel.set_index('DATE')
df_new_excel.index = df_old_excel.index
df_new_excel.combine_first(df_old_excel)
Can cfspreadsheet (or anything else using cold fusion) be used to update just a few cells in an existing xlsx spreadsheet?
I have updated entire sheets in the past - using an object - but the sheet in question is so massive and messy - I only want to be able to edit a few of the cells - without have to read and validate ALL the columns.
basically the ability to use SpreadsheetSetCellValue directly on the spreadsheet as opposed to working only on the spreadsheet object that must be read in and updated/written back as an entire sheet.
I use SAS EG 6.1 to add sheets to an existing excel file (xlsx). I use a simple proc export with DBMS=xlsx. The data is written to the excelfile succesfully.
However it appears that formatting in Excel is taken from the already existing sheets. There also is a difference between cells that contains numbers vs. cells that contain text. For instance when in the existing sheet i used header 1 cell style, the numbers in the exported worksheets also had this header 1 style.
Screenshot of the existing sheet: Existing Worksheet
Screenshot of the added sheet (wrong formats)
The wrongly formatted added worksheet
I tried the following things:
- add an extra sheet without formatting and place this as first sheet in the workbook. My thought was the exported work sheets then wouldn't have the format either. No succes.
- add an extra sheet without formatting and place this as last sheet in the workbook. My thought was the exported work sheets then wouldn't have the format either. No succes.
2 alternative possible solutions i think of are:
1) using the pcfiles and ranges method. I will try this and post the results.
2) recreate the existing workbook and pray to see different results.
Did anyone have this experience and solved this problem?
update 17-1-2016: added screenshots and tried the procedure with a fresh excel workfile. The latter didn't result in succes.