Forum Discussion
Importing dynamic named worksheets
Hi LoremIpsum,
The query FirstSheet = Table.SelectRows(Source, each [Kind] = "Sheet"){0}[Data], will filter the Source table firstly based on the condition [Kind] column has "Sheet" value, then retrieve data from the first row of [Data] column. You can see below sample:
Source tableValues from Source table first row of [Data] column when [Kind] has "Sheet" value
In your scenario, assume there is only one sheet (contains two columns) in the Excel file, and this sheet name is changed dynamically. You can write the Power Query like below:
let
Source = Excel.Workbook(File.Contents("C:\Users\<user name>\Desktop\New Microsoft Excel Worksheet.xlsx"), null, true),
#"Expanded Data" = Table.ExpandTableColumn(Source, "Data", {"Column1", "Column2"}, {"Data.Column1", "Data.Column2"})
in
#"Expanded Data"As above query doesn't specify sheet name, though the Excel sheet name is changed, the above query can always get data.
Best Regards,
QiuyunYu
Hi LoremIpsum,
The query FirstSheet = Table.SelectRows(Source, each [Kind] = "Sheet"){0}[Data], will filter the Source table firstly based on the condition [Kind] column has "Sheet" value, then retrieve data from the first row of [Data] column. You can see below sample:
Source tableValues from Source table first row of [Data] column when [Kind] has "Sheet" value
In your scenario, assume there is only one sheet (contains two columns) in the Excel file, and this sheet name is changed dynamically. You can write the Power Query like below:
let
Source = Excel.Workbook(File.Contents("C:\Users\<user name>\Desktop\New Microsoft Excel Worksheet.xlsx"), null, true),
#"Expanded Data" = Table.ExpandTableColumn(Source, "Data", {"Column1", "Column2"}, {"Data.Column1", "Data.Column2"})
in
#"Expanded Data"
As above query doesn't specify sheet name, though the Excel sheet name is changed, the above query can always get data.
Best Regards,
QiuyunYu
Thank you for replying. I thought "FirstSheet = Table.SelectRows(Source, each [Kind] = "Sheet"){0}[Data]" was filtering of some sort, but since none of my columns contain the sheet name I was lost how it did that and worked. I still am.
I understand the concept of your solution, but I'm not comfortable enough with the language to fit it into my existing design. I'm completely shocked that my problem isn't a common problem with a solid straight forward solution.
Where is the best source for learning Power Query's language?Hi LoremIpsum,
Is there any concern about the solution posted in my previous reply? Maybe you can share how the Excel workbook looks like and desired data in Power BI, so we can check if there any better solution?
Regarding the resource to learn Power Query, you can refer to this thread. Besides, ImkeF and MarcelBeug are good at Power Query, you can keep an eye on their posts in the forum.
Best Regards,
Qiuyun YuHi LoremIpsum,
let me try a different explanation why your formula works like you want it:
1) Filters the table for those rows, who have "Sheet" in column "Kind". So if you have other object types like tables or named ranges, you assure this way that they won't interfere
2) {0} selects one row from your table and returns it as a record. As M starts to count at zero, this actually fetches the first row.
3) [Data] selects the column "Data" and as you're on the record-level already, you will directly receive the table from that cell.
Hey v-qiuyu-msft ,
This is an elegant solution and can be use for a small table wth a few columns as in this example.
But how can I make this work, if my table has over 100 columns? Can the a dynamic of list of columns be supplied where you have supplied the list of columns?
Any help appreciated.
