Help transforming cash flow data from spreadsheets in a folder

Hi CoboleiroBr,

Based on my test, you should be able to use the M query below to Import Multiple Excel Sheets From Multiple Excel Workbooks in your scenario. :smileyhappy:

let
    Source = Folder.Files("C:\aaa\Desktop\New folder"),
    #"Removed Other Columns" = Table.SelectColumns(Source,{"Content"}),
    #"Added Custom" = Table.AddColumn(#"Removed Other Columns", "Custom", each Excel.Workbook([Content])),
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Content"}),
    #"Expanded Custom" = Table.ExpandTableColumn(#"Removed Columns", "Custom", {"Name", "Data", "Item", "Kind", "Hidden"}, {"Custom.Name", "Custom.Data", "Custom.Item", "Custom.Kind", "Custom.Hidden"}),
    #"Removed Columns1" = Table.RemoveColumns(#"Expanded Custom",{"Custom.Name", "Custom.Kind", "Custom.Hidden", "Custom.Item"}),
    #"Added Custom1" = Table.AddColumn(#"Removed Columns1", "Custom", each Table.PromoteHeaders(Table.Transpose([Custom.Data]),[PromoteAllScalars=true])),
    #"Removed Columns2" = Table.RemoveColumns(#"Added Custom1",{"Custom.Data"}),
    #"Expanded Custom1" = Table.ExpandTableColumn(#"Removed Columns2", "Custom", {"Date", "Money", "Debit", "Credit"}, {"Custom.Date", "Custom.Money", "Custom.Debit", "Custom.Credit"})
in
    #"Expanded Custom1"

Regards