diff --git a/api/src/main/java/org/apache/iceberg/DataFile.java b/api/src/main/java/org/apache/iceberg/DataFile.java
index a72fb2c1eca3..3d75052924bd 100644
--- a/api/src/main/java/org/apache/iceberg/DataFile.java
+++ b/api/src/main/java/org/apache/iceberg/DataFile.java
@@ -62,11 +62,12 @@ public interface DataFile extends ContentFile<DataFile> {
   Types.NestedField EQUALITY_IDS = optional(135, "equality_ids", ListType.ofRequired(136, IntegerType.get()),
       "Equality comparison field IDs");
   Types.NestedField SORT_ORDER_ID = optional(140, "sort_order_id", IntegerType.get(), "Sort order ID");
+  Types.NestedField SPEC_ID = optional(141, "spec_id", IntegerType.get(), "Partition spec ID");
 
   int PARTITION_ID = 102;
   String PARTITION_NAME = "partition";
   String PARTITION_DOC = "Partition data tuple, schema based on the partition spec";
-  // NEXT ID TO ASSIGN: 141
+  // NEXT ID TO ASSIGN: 142
 
   static StructType getType(StructType partitionType) {
     // IDs start at 100 to leave room for changes to ManifestEntry
@@ -74,6 +75,7 @@ static StructType getType(StructType partitionType) {
         CONTENT,
         FILE_PATH,
         FILE_FORMAT,
+        SPEC_ID,
         required(PARTITION_ID, PARTITION_NAME, partitionType, PARTITION_DOC),
         RECORD_COUNT,
         FILE_SIZE,
diff --git a/core/src/main/java/org/apache/iceberg/BaseFile.java b/core/src/main/java/org/apache/iceberg/BaseFile.java
index 28898439970e..84af7e7838af 100644
--- a/core/src/main/java/org/apache/iceberg/BaseFile.java
+++ b/core/src/main/java/org/apache/iceberg/BaseFile.java
@@ -235,45 +235,48 @@ public void put(int i, Object value) {
         this.format = FileFormat.valueOf(value.toString());
         return;
       case 3:
-        this.partitionData = (PartitionData) value;
+        this.partitionSpecId = (value != null) ? (Integer) value : -1;
         return;
       case 4:
-        this.recordCount = (Long) value;
+        this.partitionData = (PartitionData) value;
         return;
       case 5:
-        this.fileSizeInBytes = (Long) value;
+        this.recordCount = (Long) value;
         return;
       case 6:
-        this.columnSizes = (Map<Integer, Long>) value;
+        this.fileSizeInBytes = (Long) value;
         return;
       case 7:
-        this.valueCounts = (Map<Integer, Long>) value;
+        this.columnSizes = (Map<Integer, Long>) value;
         return;
       case 8:
-        this.nullValueCounts = (Map<Integer, Long>) value;
+        this.valueCounts = (Map<Integer, Long>) value;
         return;
       case 9:
-        this.nanValueCounts = (Map<Integer, Long>) value;
+        this.nullValueCounts = (Map<Integer, Long>) value;
         return;
       case 10:
-        this.lowerBounds = SerializableByteBufferMap.wrap((Map<Integer, ByteBuffer>) value);
+        this.nanValueCounts = (Map<Integer, Long>) value;
         return;
       case 11:
-        this.upperBounds = SerializableByteBufferMap.wrap((Map<Integer, ByteBuffer>) value);
+        this.lowerBounds = SerializableByteBufferMap.wrap((Map<Integer, ByteBuffer>) value);
         return;
       case 12:
-        this.keyMetadata = ByteBuffers.toByteArray((ByteBuffer) value);
+        this.upperBounds = SerializableByteBufferMap.wrap((Map<Integer, ByteBuffer>) value);
         return;
       case 13:
-        this.splitOffsets = ArrayUtil.toLongArray((List<Long>) value);
+        this.keyMetadata = ByteBuffers.toByteArray((ByteBuffer) value);
         return;
       case 14:
-        this.equalityIds = ArrayUtil.toIntArray((List<Integer>) value);
+        this.splitOffsets = ArrayUtil.toLongArray((List<Long>) value);
         return;
       case 15:
-        this.sortOrderId = (Integer) value;
+        this.equalityIds = ArrayUtil.toIntArray((List<Integer>) value);
         return;
       case 16:
+        this.sortOrderId = (Integer) value;
+        return;
+      case 17:
         this.fileOrdinal = (long) value;
         return;
       default:
@@ -301,32 +304,34 @@ public Object get(int i) {
       case 2:
         return format != null ? format.toString() : null;
       case 3:
-        return partitionData;
+        return partitionSpecId;
       case 4:
-        return recordCount;
+        return partitionData;
       case 5:
-        return fileSizeInBytes;
+        return recordCount;
       case 6:
-        return columnSizes;
+        return fileSizeInBytes;
       case 7:
-        return valueCounts;
+        return columnSizes;
       case 8:
-        return nullValueCounts;
+        return valueCounts;
       case 9:
-        return nanValueCounts;
+        return nullValueCounts;
       case 10:
-        return lowerBounds;
+        return nanValueCounts;
       case 11:
-        return upperBounds;
+        return lowerBounds;
       case 12:
-        return keyMetadata();
+        return upperBounds;
       case 13:
-        return splitOffsets();
+        return keyMetadata();
       case 14:
-        return equalityFieldIds();
+        return splitOffsets();
       case 15:
-        return sortOrderId;
+        return equalityFieldIds();
       case 16:
+        return sortOrderId;
+      case 17:
         return pos;
       default:
         throw new UnsupportedOperationException("Unknown field ordinal: " + pos);
@@ -442,6 +447,7 @@ public String toString() {
         .add("content", content.toString().toLowerCase(Locale.ROOT))
         .add("file_path", filePath)
         .add("file_format", format)
+        .add("spec_id", specId())
         .add("partition", partitionData)
         .add("record_count", recordCount)
         .add("file_size_in_bytes", fileSizeInBytes)
diff --git a/spark/v2.4/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java b/spark/v2.4/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java
index 93a3bf13189f..eb6f5841fd62 100644
--- a/spark/v2.4/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java
+++ b/spark/v2.4/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java
@@ -153,7 +153,7 @@ public void testEntriesTable() throws Exception {
       rows.forEach(row -> {
         row.put(2, 0L);
         GenericData.Record file = (GenericData.Record) row.get("data_file");
-        file.put(0, FileContent.DATA.id());
+        asMetadataRecord(file);
         expected.add(row);
       });
     }
@@ -311,7 +311,7 @@ public void testAllEntriesTable() throws Exception {
         rows.forEach(row -> {
           row.put(2, 0L);
           GenericData.Record file = (GenericData.Record) row.get("data_file");
-          file.put(0, FileContent.DATA.id());
+          asMetadataRecord(file);
           expected.add(row);
         });
       }
@@ -386,7 +386,7 @@ public void testFilesTable() throws Exception {
         for (GenericData.Record record : rows) {
           if ((Integer) record.get("status") < 2 /* added or existing */) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -442,7 +442,7 @@ public void testFilesTableWithSnapshotIdInheritance() throws Exception {
         try (CloseableIterable<GenericData.Record> rows = Avro.read(in).project(entriesTable.schema()).build()) {
           for (GenericData.Record record : rows) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -549,7 +549,7 @@ public void testFilesUnpartitionedTable() throws Exception {
         for (GenericData.Record record : rows) {
           if ((Integer) record.get("status") < 2 /* added or existing */) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -646,7 +646,7 @@ public void testAllDataFilesTable() throws Exception {
         for (GenericData.Record record : rows) {
           if ((Integer) record.get("status") < 2 /* added or existing */) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -1411,4 +1411,9 @@ public void testRemoveOrphanFilesActionSupport() throws InterruptedException {
 
     Assert.assertEquals("Rows must match", records, actualRecords);
   }
+
+  private void asMetadataRecord(GenericData.Record file) {
+    file.put(0, FileContent.DATA.id());
+    file.put(3, 0); // specId
+  }
 }
diff --git a/spark/v2.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java b/spark/v2.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
index 111e908b90ea..6e55d1f78976 100644
--- a/spark/v2.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
+++ b/spark/v2.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
@@ -342,7 +342,7 @@ private Set<String> extractFilePathsMatchingConditionOnPartition(List<Row> files
     // idx 1: file_path, idx 3: partition
     return files.stream()
         .filter(r -> {
-          Row partition = r.getStruct(3);
+          Row partition = r.getStruct(4);
           return condition.test(partition);
         }).map(r -> CountOpenLocalFileSystem.stripScheme(r.getString(1)))
         .collect(Collectors.toSet());
diff --git a/spark/v3.0/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java b/spark/v3.0/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java
index fc6d1c5f6b64..532052d45511 100644
--- a/spark/v3.0/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java
+++ b/spark/v3.0/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java
@@ -21,6 +21,7 @@
 
 import java.util.Comparator;
 import java.util.List;
+import java.util.stream.Collectors;
 import org.apache.avro.generic.GenericData;
 import org.apache.avro.generic.GenericRecordBuilder;
 import org.apache.iceberg.AssertHelpers;
@@ -140,7 +141,7 @@ public void testEntriesTable() throws Exception {
       rows.forEach(row -> {
         row.put(2, 0L);
         GenericData.Record file = (GenericData.Record) row.get("data_file");
-        file.put(0, FileContent.DATA.id());
+        asMetadataRecord(file);
         expected.add(row);
       });
     }
@@ -298,7 +299,7 @@ public void testAllEntriesTable() throws Exception {
         rows.forEach(row -> {
           row.put(2, 0L);
           GenericData.Record file = (GenericData.Record) row.get("data_file");
-          file.put(0, FileContent.DATA.id());
+          asMetadataRecord(file);
           expected.add(row);
         });
       }
@@ -373,7 +374,7 @@ public void testFilesTable() throws Exception {
         for (GenericData.Record record : rows) {
           if ((Integer) record.get("status") < 2 /* added or existing */) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -429,7 +430,7 @@ public void testFilesTableWithSnapshotIdInheritance() throws Exception {
         try (CloseableIterable<GenericData.Record> rows = Avro.read(in).project(entriesTable.schema()).build()) {
           for (GenericData.Record record : rows) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -536,7 +537,7 @@ public void testFilesUnpartitionedTable() throws Exception {
         for (GenericData.Record record : rows) {
           if ((Integer) record.get("status") < 2 /* added or existing */) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -633,7 +634,7 @@ public void testAllDataFilesTable() throws Exception {
         for (GenericData.Record record : rows) {
           if ((Integer) record.get("status") < 2 /* added or existing */) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -1181,4 +1182,44 @@ public void testRemoveOrphanFilesActionSupport() throws InterruptedException {
 
     Assert.assertEquals("Rows must match", records, actualRecords);
   }
+
+  @Test
+  public void testFilesTablePartitionId() throws Exception {
+    TableIdentifier tableIdentifier = TableIdentifier.of("db", "files_test");
+    Table table = createTable(tableIdentifier, SCHEMA, PartitionSpec.builderFor(SCHEMA).identity("id").build());
+    int spec0 = table.spec().specId();
+
+    Dataset<Row> df1 = spark.createDataFrame(Lists.newArrayList(new SimpleRecord(1, "a")), SimpleRecord.class);
+    Dataset<Row> df2 = spark.createDataFrame(Lists.newArrayList(new SimpleRecord(2, "b")), SimpleRecord.class);
+
+    df1.select("id", "data").write()
+        .format("iceberg")
+        .mode("append")
+        .save(loadLocation(tableIdentifier));
+
+    // change partition spec
+    table.refresh();
+    table.updateSpec().removeField("id").commit();
+    int spec1 = table.spec().specId();
+
+    // add a second file
+    df2.select("id", "data").write()
+        .format("iceberg")
+        .mode("append")
+        .save(loadLocation(tableIdentifier));
+
+    List<Integer> actual = spark.read()
+        .format("iceberg")
+        .load(loadLocation(tableIdentifier, "files"))
+        .sort(DataFile.SPEC_ID.name())
+        .collectAsList()
+        .stream().map(r -> (Integer) r.getAs(DataFile.SPEC_ID.name())).collect(Collectors.toList());
+
+    Assert.assertEquals("Should have two partition specs", ImmutableList.of(spec0, spec1), actual);
+  }
+
+  private void asMetadataRecord(GenericData.Record file) {
+    file.put(0, FileContent.DATA.id());
+    file.put(3, 0); // specId
+  }
 }
diff --git a/spark/v3.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java b/spark/v3.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
index 111e908b90ea..6e55d1f78976 100644
--- a/spark/v3.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
+++ b/spark/v3.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
@@ -342,7 +342,7 @@ private Set<String> extractFilePathsMatchingConditionOnPartition(List<Row> files
     // idx 1: file_path, idx 3: partition
     return files.stream()
         .filter(r -> {
-          Row partition = r.getStruct(3);
+          Row partition = r.getStruct(4);
           return condition.test(partition);
         }).map(r -> CountOpenLocalFileSystem.stripScheme(r.getString(1)))
         .collect(Collectors.toSet());
diff --git a/spark/v3.2/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java b/spark/v3.2/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java
index 10b9d6f3030c..d88dd018c1f0 100644
--- a/spark/v3.2/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java
+++ b/spark/v3.2/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSourceTablesBase.java
@@ -21,6 +21,7 @@
 
 import java.util.Comparator;
 import java.util.List;
+import java.util.stream.Collectors;
 import org.apache.avro.generic.GenericData;
 import org.apache.avro.generic.GenericRecordBuilder;
 import org.apache.iceberg.AssertHelpers;
@@ -139,7 +140,7 @@ public void testEntriesTable() throws Exception {
       rows.forEach(row -> {
         row.put(2, 0L);
         GenericData.Record file = (GenericData.Record) row.get("data_file");
-        file.put(0, FileContent.DATA.id());
+        asMetadataRecord(file);
         expected.add(row);
       });
     }
@@ -297,7 +298,7 @@ public void testAllEntriesTable() throws Exception {
         rows.forEach(row -> {
           row.put(2, 0L);
           GenericData.Record file = (GenericData.Record) row.get("data_file");
-          file.put(0, FileContent.DATA.id());
+          asMetadataRecord(file);
           expected.add(row);
         });
       }
@@ -372,7 +373,7 @@ public void testFilesTable() throws Exception {
         for (GenericData.Record record : rows) {
           if ((Integer) record.get("status") < 2 /* added or existing */) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -428,7 +429,7 @@ public void testFilesTableWithSnapshotIdInheritance() throws Exception {
         try (CloseableIterable<GenericData.Record> rows = Avro.read(in).project(entriesTable.schema()).build()) {
           for (GenericData.Record record : rows) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -535,7 +536,7 @@ public void testFilesUnpartitionedTable() throws Exception {
         for (GenericData.Record record : rows) {
           if ((Integer) record.get("status") < 2 /* added or existing */) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -632,7 +633,7 @@ public void testAllDataFilesTable() throws Exception {
         for (GenericData.Record record : rows) {
           if ((Integer) record.get("status") < 2 /* added or existing */) {
             GenericData.Record file = (GenericData.Record) record.get("data_file");
-            file.put(0, FileContent.DATA.id());
+            asMetadataRecord(file);
             expected.add(file);
           }
         }
@@ -1180,4 +1181,45 @@ public void testRemoveOrphanFilesActionSupport() throws InterruptedException {
 
     Assert.assertEquals("Rows must match", records, actualRecords);
   }
+
+
+  @Test
+  public void testFilesTablePartitionId() throws Exception {
+    TableIdentifier tableIdentifier = TableIdentifier.of("db", "files_test");
+    Table table = createTable(tableIdentifier, SCHEMA, PartitionSpec.builderFor(SCHEMA).identity("id").build());
+    int spec0 = table.spec().specId();
+
+    Dataset<Row> df1 = spark.createDataFrame(Lists.newArrayList(new SimpleRecord(1, "a")), SimpleRecord.class);
+    Dataset<Row> df2 = spark.createDataFrame(Lists.newArrayList(new SimpleRecord(2, "b")), SimpleRecord.class);
+
+    df1.select("id", "data").write()
+        .format("iceberg")
+        .mode("append")
+        .save(loadLocation(tableIdentifier));
+
+    // change partition spec
+    table.refresh();
+    table.updateSpec().removeField("id").commit();
+    int spec1 = table.spec().specId();
+
+    // add a second file
+    df2.select("id", "data").write()
+        .format("iceberg")
+        .mode("append")
+        .save(loadLocation(tableIdentifier));
+
+    List<Integer> actual = spark.read()
+        .format("iceberg")
+        .load(loadLocation(tableIdentifier, "files"))
+        .sort(DataFile.SPEC_ID.name())
+        .collectAsList()
+        .stream().map(r -> (Integer) r.getAs(DataFile.SPEC_ID.name())).collect(Collectors.toList());
+
+    Assert.assertEquals("Should have two partition specs", ImmutableList.of(spec0, spec1), actual);
+  }
+
+  private void asMetadataRecord(GenericData.Record file) {
+    file.put(0, FileContent.DATA.id());
+    file.put(3, 0); // specId
+  }
 }
diff --git a/spark/v3.2/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java b/spark/v3.2/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
index 111e908b90ea..6e55d1f78976 100644
--- a/spark/v3.2/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
+++ b/spark/v3.2/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
@@ -342,7 +342,7 @@ private Set<String> extractFilePathsMatchingConditionOnPartition(List<Row> files
     // idx 1: file_path, idx 3: partition
     return files.stream()
         .filter(r -> {
-          Row partition = r.getStruct(3);
+          Row partition = r.getStruct(4);
           return condition.test(partition);
         }).map(r -> CountOpenLocalFileSystem.stripScheme(r.getString(1)))
         .collect(Collectors.toSet());