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Processing an Excel extract

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  • Processing an Excel extract

    My next challenge using Excel is more complex than I had imagined, so help would be welcome.

    The Excel is downloaded as a WEB file, and needs to be converted to a format which Alpha can work with. I don't have a choice with this input format.
    So far I have been opening the Excel.web and saving it as Excel.xls. All files are the same format.
    There are 15 (possibly a variable number) Excel files to be processed so a quicker way of opening and saving would be good.

    Next, I need to remove the header and trailer which I don't need and I have the logic for that, however I'd like to process all of the files in a folder to remove the records I don't need. Sometimes there will be 15, sometimes 10 and sometimes 20 or so. I can keep a specific folder with just the files I need to be processed in it.

    Then, as the format of the Excel file has 60 columns identified as Field_0 to Field_59, I have mapped to a Final Table with the fields I need to identify the data by, like
    Field_0 = "Project", Field_1 = "Description" etc. So I want to carry out an append operation, lumping all of the Excel files into one and then import into my Final Table. This will need to append while there are any un-appended files in existence.

    So, two things really. Any ideas on opening and saving Excel web to xls and the logic for parsing a folder and a) getting the data updated and b) getting the recursive process of appending.

    I suppose my main problem is cycling through a folder list and processing the files in it.

    All help gratefully received, and I haven't forgotten about the problem with spurious records in a browse. Just running on empty.
    See our Hybrid Option here;
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    There are 3 things you can do in any situation;
    Live with it, Change it or Walk away from it.

  • #2
    Re: Processing an Excel extract.

    FILEFIND as C = FILEFIND.GET( File_Pattern as C [, File_Attribute as N [, Format_String as C ]] )


    The FILEFIND.GET() method creates a CR-LF delimited string with information about the files in a directory that match a pattern. The format string controls the format in which the information is returned.

    FOR EACH ... NEXT

    The FOR EACH ... NEXT operators allow you to step through a list, collection, or array without knowing the number of elements that it contains.
    There can be only one.

    Comment


    • #3
      Re: Processing an Excel extract

      Ok Stan, got the FileFind processing working well - thank you.
      Just a bit more help if you would. What is the code logic for each item in the list?
      I have set the list up as;
      list_group=filefind.get("c:\test data\*.*",0,"PN|D|T")
      ?list_group
      = c:\test data\.|D|03/02/2015 01:34:04 71 pm
      c:\test data\..|D|03/02/2015 01:34:04 71 pm
      c:\test data\table1.xls|-|03/02/2015 01:33:36 63 pm
      c:\test data\table2.xls|-|03/02/2015 01:34:04 71 pm

      So when I plumb in the For/Next, how do I select the Blue ones?
      See our Hybrid Option here;
      https://hybridapps.example-software.com/


      There are 3 things you can do in any situation;
      Live with it, Change it or Walk away from it.

      Comment


      • #4
        Re: Processing an Excel extract

        What logic did you use to select the blue ones? Maybe

        list_group = <<%grp%
        #c:\test data\.|D|03/02/2015 01:34:04 71 pm
        #c:\test data\..|D|03/02/2015 01:34:04 71 pm
        #c:\test data\table1.xls|-|03/02/2015 01:33:36 63 pm
        #c:\test data\table2.xls|-|03/02/2015 01:34:04 71 pm
        #%grp%
        ? list_group
        = c:\test data\.|D|03/02/2015 01:34:04 71 pm
        c:\test data\..|D|03/02/2015 01:34:04 71 pm
        c:\test data\table1.xls|-|03/02/2015 01:33:36 63 pm
        c:\test data\table2.xls|-|03/02/2015 01:34:04 71 pm


        xl_files = ""
        for each line in list_group
        if ".xls" $ line.value
        xl_files = xl_files+line.value+crlf()
        end if
        next

        ? xl_files
        = c:\test data\table1.xls|-|03/02/2015 01:33:36 63 pm
        c:\test data\table2.xls|-|03/02/2015 01:34:04 71 pm

        Or change your filefind to

        list_group=filefind.get("c:\test data\*.xls",0,"PN|D|T",FILE_FIND_NORMAL)
        Last edited by Stan Mathews; 02-04-2015, 12:28 PM.
        There can be only one.

        Comment


        • #5
          Re: Processing an Excel extract

          Thanks for the above Stan, but can you point me to the logic for;

          Find the files to be processed (done that with your help)
          For each file
          ...Run an append
          Next file

          I'm OK with For/Next/While loops, just where to put the append logic.
          Should it be the whole append logic or can I call an Operation without converting it to Xbasic?
          I suppose the Xbasic is easily copied into the script so just the right place and do I need FOO as well?
          See our Hybrid Option here;
          https://hybridapps.example-software.com/


          There are 3 things you can do in any situation;
          Live with it, Change it or Walk away from it.

          Comment


          • #6
            Re: Processing an Excel extract

            For each file in list_group
            ...Run an append
            Next file

            I don't see how an append operation can use an Excel file as the source/transaction table. Whatever you want to do with the files in list_group goes between for each and next.

            Operations are usually specific in the files they require. IOW, you have to name the source and transaction tables. The advantage to capturing the xbasic and using it is that instead of something like

            import_filename = "c:\temp\npromos.xls"

            you can modify to say

            import_filename = line.value

            where "line" is the placeholder for the list_group variable.

            There's nothing special about foo. When telling Alpha to reference an entry in a list such as list_group you can say

            For each file in list_group
            For each foo in list_group
            For each entry in list_group
            For each of_the_filenames_found in list_group

            Just make sure the ending next file, next foo, whatever - matches.
            There can be only one.

            Comment


            • #7
              Re: Processing an Excel extract

              Apologies. In my haste, I omitted that vital step.
              The process should be;
              Identify files
              ..Import to new tables - all same format luckily
              ....Append tables to a master table (that was where I was thinking about launching the Append operation I built as a Proof of Concept.

              I'm working off site next week so I'll be able to concentrate on this and post the results if anyone is following this.
              See our Hybrid Option here;
              https://hybridapps.example-software.com/


              There are 3 things you can do in any situation;
              Live with it, Change it or Walk away from it.

              Comment


              • #8
                Re: Processing an Excel extract

                You can capture the import and append operation code, combine it into one script, and place that in the for each....next loop. You could have two separate for each....next loops with the first doing the importing and the second doing the appends.
                There can be only one.

                Comment


                • #9
                  Re: Processing an Excel extract

                  Hi Ted,
                  If you can open the web file in Excel and save it as an xls; after you have removed the headers and such, why not just save the web file in dbf format? Then you can iterate thru those tables in your append script and skip the step of saving to multiple xls and combining them into one xls. You could delete the tables when the append is finished, so your directory has only the files you need for the session.
                  Robin

                  Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

                  Comment


                  • #10
                    Re: Processing an Excel extract

                    why not just save the web file in dbf format?
                    That's been deprecated in Excel versions after 2003. May not be an option.

                    I've had to modify a lot of code to save as csv and then import the result. Easier to format the csv as necessary than to rely on whatever Excel supports.
                    There can be only one.

                    Comment


                    • #11
                      Re: Processing an Excel extract

                      I'm on 2003 and 2010, so I'll check.
                      I'm sure glad this forum is still up and working.
                      I have to use a product called Jira, and it's awful. The supplier forum is carp also.
                      Not Alpha, a large UK operation I meant.
                      See our Hybrid Option here;
                      https://hybridapps.example-software.com/


                      There are 3 things you can do in any situation;
                      Live with it, Change it or Walk away from it.

                      Comment

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