XLSX

Why showing error message while opening .xls file

由 放肆的年华 提交于 2019-11-29 08:41:10
问题 In my asp.net, C# application we are generating and downloading .xls file. But when I'm trying to open, it's giving a message "The file you are trying to open, 'filename.xls', is in a different format than specified by the file extension. Verify that the file is not corrupted and is from a trusted source before opening the file. Do you want to open the file now?" If I press 'Yes' it's opening. I changed the file extension to .xlsx, still same message. Can anyone tell me why this is happening?

Reading an Excel File From C#

由 你离开我真会死。 提交于 2019-11-29 05:09:58
I have a connection string to read an excel file from my C# project that looks like this.. String ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;" + "Data Source=" + VariableFile + ";" + "Extended Properties=Excel 8.0;"; and I also have objConn.Open(); to open the file.. The problem is the only time my program will open the file is if I open the Excel file manually and run my program. Can anyone help me to open the file from my C# code instead of having to open it first manually. I get the error message: Could not find installable ISAM when I try to run it without opening the Excel file

With the R package xlsx, is it possible to set na.strings when reading an Excel file?

由 空扰寡人 提交于 2019-11-29 04:52:19
I'm reading in an Excel file using read.xlsx , and I would like to set na.strings as you can with read.table . Is this possible? It doesn't work to just add na.strings to the call like this: Data <- read.xlsx("my file.xlsx", sheetName = "MyData", na.strings = "no info") Is there some other way to do it? No this is not possible for the simple reason that read.xlsx doesn't take care of special missing values. But this can be a possible enhancement for getCellvalue function. You can either replace missing values using something like : Data[Data=="no info"] <- NA Or, transform your data to a csv

how to use SheetJS (js-xlsx) in angular 2

由 时光毁灭记忆、已成空白 提交于 2019-11-29 03:57:29
问题 I'm learning angular2 and i wanted to use js-xlsx library in my project. I installed xlsx npm install xlsx and jszip npm install jszip and added them in my index.html <script src="node_modules/xlsx/dist/xlsx.core.min.js"></script> <script src="node_modules/jszip/dist/jszip.min.js"></script> and added the typescript defitions tsd install xlsx and I'm using webpack but when I used it in import * as xlsx from 'xlsx'; but i get error module build failed: error: cannot resolve module 'xlsx' 回答1:

Parsing an Excel file in C#, the cells seem to get cut off at 255 characters… how do I stop that?

由 ℡╲_俬逩灬. 提交于 2019-11-29 02:57:20
问题 I am parsing through an uploaded excel files (xlsx) in asp.net with c#. I am using the following code (simplified): string connString = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileLocation + ";Extended Properties=\"Excel 12.0 Xml;HDR=YES\";"); OleDbDataAdapter adapter = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", connString); DataSet ds = new DataSet(); adapter.Fill(ds); adapter.Dispose(); DataTable dt = ds.Tables[0]; var rows = from p in dt.AsEnumerable() select

Which gem support Import/Export to xlsx file in ruby [closed]

由 …衆ロ難τιáo~ 提交于 2019-11-29 00:57:38
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 9 months ago . I need to read and write to Excelx file with ruby code, Tried with spreadsheet it does not support xlsx format, Roo is also to read the file and not write to xlsx. Is there any gem/plugin which will write to Excelx? 回答1: For the task of writing/exporting xlsx files, Axlsx is the most feature complete library I

校外自行联系

由 好久不见. 提交于 2019-11-29 00:21:04
北京玩转星球科技有限公司 北京市通州区云景东路k2海棠湾5号楼2单元502 https://kdocs.cn/l/sDtoSOE9B [文件] 软件学院2016级卓越161班毕业实训去向统计表.xlsx https://soft.zut.edu.cn/info/1075/6103.htm 2016级本科毕业实训安排以及相关附件 来源： https://my.oschina.net/bittsui/blog/3099784

Read local xls/xlsx file in javascript

由 微笑、不失礼 提交于 2019-11-29 00:09:25
Can we read large local xls/xlsx file in angularjs/Javascript without using any liabrary, if not then which is most suitable library? Reena While looking for this I found this: Basic parsers implemented in pure JS: http://oss.sheetjs.com/js-xls/ (XLS files, what you wanted) http://oss.sheetjs.com/js-xlsx/ (XLSX/XLSM/XLSB files) I'm providing the reference How to parse Excel file in Javascript/HTML5 https://gist.github.com/psjinx/8002786 Hope this could be helpful. use this code to read <script> /* set up XMLHttpRequest */ var url = "test.xlsx"; var oReq = new XMLHttpRequest(); oReq.open("GET",

How to read in multiple “.xlsx” files to R

由 六眼飞鱼酱① 提交于 2019-11-28 14:41:33
Having trouble trying to read in multiple .xlsx files to R from the same directory. I keep getting the following error. "Error in path.expand(file) : argument "file" is missing, with no default" My code is as follows. require(.xlsx) Files=list.files(path="I:/Marcs_Discretinization_try_1/Attempt1/Actual Data", pattern=".xlsx") sapply(Files, read.xlsx2(sheetIndex=8)) The output of object Files looks like this which seemingly does not have the attached path. [1] "2015-B1-2OR.xlsx" "2015-B1-OR10-B.xlsx" "2015-B1-OR10.xlsx" "2015-B1-OR19.xlsx" "2015-B2-OR19.xlsx" [6] "2015-O1-2OR.xlsx" "2015-O1

How to read XLSX file of size >40MB

由 无人久伴 提交于 2019-11-28 13:24:14
I am using XSSF of apache-POI to read the XLSX file. I was getting an error java.lang.OutOfMemoryError: Java heap space . Later, increased the heap size using -Xmx1024m for the java class still the same error repeats. Code: String filename = "D:\\filename.xlsx"; FileInputStream fis = null; try { fis = new FileInputStream(filename); XSSFWorkbook workbook = new XSSFWorkbook(fis); In the above code segment, the execution stops at XSSFWorkbook and throws the specified error. Can someone suggest better approach to read large XLSX files. POI allows you to read excel files in a streaming manner. The
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