Data Enable folding for huge 5 years data

Dears,

I prepared a 5 years data and i need to enable the incremental refresh

but i got an message as below

"Unable to confirm if the M query can be folded. it is not recommended to use incremental refresh with non-foldable queries"

here below the M steps so how can i modify it to Enable folding

 #"Filtered Rows" = Table.SelectRows(Source, each Text.Contains([Extension], "txt")),
#"Filtered Rows1" = Table.SelectRows(#"Filtered Rows", each Text.Contains([Name], "Purchase performance")),
#"Filtered Hidden Files1" = Table.SelectRows(#"Filtered Rows1", each [Attributes]?[Hidden]? <> true),
#"Invoke Custom Function1" = Table.AddColumn(#"Filtered Hidden Files1", "Transform File", each #"Transform File"([Content])),
#"Renamed Columns1" = Table.RenameColumns(#"Invoke Custom Function1", {"Name", "Source.Name"}),
#"Removed Other Columns1" = Table.SelectColumns(#"Renamed Columns1", {"Source.Name", "Transform File"}),
#"Expanded Table Column1" = Table.ExpandTableColumn(#"Removed Other Columns1", "Transform File", Table.ColumnNames(#"Transform File"(#"Sample File"))),
#"Changed Type" = Table.TransformColumnTypes(#"Expanded Table Column1",{{"Source.Name", type text}, {"Date", type text}, {"Month", type text}, {"Supplier Code", type text}, {"Supplier Name", type text}, {"Supplier Type", type text}, {"Store Code Name", type text}, {"Dept", type text}, {"Section Code", type text}, {"Section Name", type text}, {"Family Code Name", type text}, {"Subfamily Code Name", type text}, {"Brand Code", type text}, {"Brand Name", type text}, {"PG Code", type text}, {"PG Name", type text}, {"Item Code", type text}, {"Item Name", type text}, {"Dc Supplier Flag", type text}, {"Item Barcode", type text}, {"VAT Code", type text}, {"VAT Rate", Percentage.Type}, {"Invoice No", type text}, {"LPO NO", type text}, {"LPO Creation Date", type text}, {"LPO Delivery Date", type text}, {"Invoice Amt Without Tax", Int64.Type}, {"Invoice Amt With Tax", Int64.Type}, {"Invoice Qty", Int64.Type}}),
#"Changed Type with Locale1" = Table.TransformColumnTypes(#"Changed Type", {{"LPO Creation Date", type date}}, "en-GB"),
#"Changed Type with Locale2" = Table.TransformColumnTypes(#"Changed Type with Locale1", {{"LPO Delivery Date", type date}}, "en-GB"),
#"Removed Columns" = Table.RemoveColumns(#"Changed Type with Locale2",{"Source.Name"}),
#"Filtered Rows2" = Table.SelectRows(#"Removed Columns", each ([Section Code] <> "" and [Section Code] <> "Section Code")),
#"Changed Type with Locale" = Table.TransformColumnTypes(#"Filtered Rows2", {{"Date", type datetime}}, "en-GB"),
#"Filtered Rows3" = Table.SelectRows(#"Changed Type with Locale", each [Date] >= RangeStart and [Date] < RangeEnd)
in
#"Filtered Rows3"