diff --git a/src/main/decoder/decode-ad1.ts b/src/main/decoder/decode-ad1.ts
index 30ebb2e..9116a73 100644
--- a/src/main/decoder/decode-ad1.ts
+++ b/src/main/decoder/decode-ad1.ts
@@ -1,25 +1,51 @@
+import { platform } from "@electron-toolkit/utils";
 import { DBFFile } from "dbffile";
 import log from "electron-log/main";
 import _ from "lodash";
 import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
+import errorTypeCheck from "../../util/errorTypeCheck";
 import store from "../store/store";
 import { DecodedAd1, OwnerRecordInterface } from "./decode-ad1.interface";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodeAD1 = async (
   extensionlessFilePath: string,
 ): Promise<DecodedAd1> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}A.AD1`);
-  } catch (error) {
-    // log.debug("Error opening AD1 File.", errorTypeCheck(error));
-    dbf = await DBFFile.open(`${extensionlessFilePath}.AD1`);
-    // log.debug("Trying to find AD1 file using regular CIECA Id.");
-  }
 
-  if (!dbf) {
-    log.error(`Could not find any AD1 files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any AD1 files at ${extensionlessFilePath}`);
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}A.AD1`);
+    } catch {
+      // log.debug("Error opening AD1 File.", errorTypeCheck(error));
+      dbf = await DBFFile.open(`${extensionlessFilePath}.AD1`);
+      // log.debug("Trying to find AD1 file using regular CIECA Id.");
+    }
+
+    if (!dbf) {
+      log.error(`Could not find any AD1 files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any AD1 files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = ["a.ad1", ".ad1"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any AD1 files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any AD1 files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening AD1 File.", errorTypeCheck(error));
+      throw error;
+    }
   }
 
   const rawDBFRecord = await dbf.readRecords(1);
@@ -205,4 +231,5 @@ const DecodeAD1 = async (
 
   return { ...rawAd1Data, owner: { data: ownerRecord } };
 };
+
 export default DecodeAD1;
diff --git a/src/main/decoder/decode-ad2.ts b/src/main/decoder/decode-ad2.ts
index ddfb702..adfb2b3 100644
--- a/src/main/decoder/decode-ad2.ts
+++ b/src/main/decoder/decode-ad2.ts
@@ -3,22 +3,45 @@ import log from "electron-log/main";
 import _ from "lodash";
 import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
 import { DecodedAD2 } from "./decode-ad2.interface";
+import { platform } from "@electron-toolkit/utils";
+import errorTypeCheck from "../../util/errorTypeCheck";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodeAD2 = async (
   extensionlessFilePath: string,
 ): Promise<DecodedAD2> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}B.AD2`);
-  } catch (error) {
-    // log.error("Error opening AD2 File.", errorTypeCheck(error));
-    dbf = await DBFFile.open(`${extensionlessFilePath}.AD2`);
-    // log.log("Trying to find AD2 file using regular CIECA Id.");
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}B.AD2`);
+    } catch {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.AD2`);
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any AD2 files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any AD2 files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any AD2 files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any AD2 files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = ["b.ad2", ".ad2"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any AD2 files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any AD2 files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening AD2 File.", errorTypeCheck(error));
+      throw error;
+    }
   }
 
   const rawDBFRecord = await dbf.readRecords(1);
diff --git a/src/main/decoder/decode-env.ts b/src/main/decoder/decode-env.ts
index 529fcf7..de26726 100644
--- a/src/main/decoder/decode-env.ts
+++ b/src/main/decoder/decode-env.ts
@@ -4,22 +4,46 @@ import _ from "lodash";
 import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
 import errorTypeCheck from "../../util/errorTypeCheck";
 import { DecodedEnv } from "./decode-env.interface";
+import { platform } from "@electron-toolkit/utils";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodeEnv = async (
   extensionlessFilePath: string,
 ): Promise<DecodedEnv> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.ENV`);
-  } catch (error) {
-    log.error("Error opening ENV File.", errorTypeCheck(error));
-  }
 
-  if (!dbf) {
-    log.error(`Could not find any ENV files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any ENV files at ${extensionlessFilePath}`);
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.ENV`);
+    } catch (error) {
+      log.error("Error opening ENV File.", errorTypeCheck(error));
+    }
 
+    if (!dbf) {
+      log.error(`Could not find any ENV files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any ENV files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = [".env"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any ENV files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any ENV files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening ENV File.", errorTypeCheck(error));
+      throw error;
+    }
+  }
   const rawDBFRecord = await dbf.readRecords(1);
 
   //AD2 will always have only 1 row.
diff --git a/src/main/decoder/decode-lin.ts b/src/main/decoder/decode-lin.ts
index 8c5e724..a5b2c1b 100644
--- a/src/main/decoder/decode-lin.ts
+++ b/src/main/decoder/decode-lin.ts
@@ -5,21 +5,45 @@ import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
 import errorTypeCheck from "../../util/errorTypeCheck";
 import store from "../store/store";
 import { DecodedLin, DecodedLinLine } from "./decode-lin.interface";
+import { platform } from "@electron-toolkit/utils";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodeLin = async (
   extensionlessFilePath: string,
 ): Promise<DecodedLin> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.LIN`);
-  } catch (error) {
-    //LIN File only has 1 location.
-    log.error("Error opening LIN File.", errorTypeCheck(error));
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.LIN`);
+    } catch (error) {
+      //LIN File only has 1 location.
+      log.error("Error opening LIN File.", errorTypeCheck(error));
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any LIN files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any LIN files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any LIN files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any LIN files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = ["lin"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any LIN files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any LIN files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening LIN File.", errorTypeCheck(error));
+      throw error;
+    }
   }
 
   const rawDBFRecord = await dbf.readRecords();
diff --git a/src/main/decoder/decode-pfh.ts b/src/main/decoder/decode-pfh.ts
index 4ca911b..0a9c724 100644
--- a/src/main/decoder/decode-pfh.ts
+++ b/src/main/decoder/decode-pfh.ts
@@ -4,24 +4,47 @@ import _ from "lodash";
 import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
 import errorTypeCheck from "../../util/errorTypeCheck";
 import { DecodedPfh } from "./decode-pfh.interface";
+import { platform } from "os";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodePfh = async (
   extensionlessFilePath: string,
 ): Promise<DecodedPfh> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.PFH`);
-  } catch (error) {
-    log.error("Error opening PFH File.", errorTypeCheck(error));
-    dbf = await DBFFile.open(`${extensionlessFilePath}.PFH`);
-    log.log("Trying to find PFH file using regular CIECA Id.");
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.PFH`);
+    } catch (error) {
+      log.error("Error opening PFH File.", errorTypeCheck(error));
+      dbf = await DBFFile.open(`${extensionlessFilePath}.PFH`);
+      log.log("Trying to find PFH file using regular CIECA Id.");
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any PFH files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any PFH files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any PFH files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any PFH files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = [".pfh"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any PFH files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any PFH files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening PFH File.", errorTypeCheck(error));
+      throw error;
+    }
   }
-
   const rawDBFRecord = await dbf.readRecords(1);
 
   //AD2 will always have only 1 row.
diff --git a/src/main/decoder/decode-pfl.ts b/src/main/decoder/decode-pfl.ts
index a0caa67..0cd6843 100644
--- a/src/main/decoder/decode-pfl.ts
+++ b/src/main/decoder/decode-pfl.ts
@@ -8,21 +8,45 @@ import {
   JobLaborRateFields,
   DecodedPflLine,
 } from "./decode-pfl.interface";
+import { platform } from "@electron-toolkit/utils";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodePfl = async (
   extensionlessFilePath: string,
 ): Promise<DecodedPfl> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.PFL`);
-  } catch (error) {
-    //PFL File only has 1 location.
-    log.error("Error opening PFL File.", errorTypeCheck(error));
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.PFL`);
+    } catch (error) {
+      //PFL File only has 1 location.
+      log.error("Error opening PFL File.", errorTypeCheck(error));
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any PFL files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any PFL files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any PFL files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any PFL files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = [".pfl"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any PFL files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any PFL files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening PFL File.", errorTypeCheck(error));
+      throw error;
+    }
   }
 
   const rawDBFRecord = await dbf.readRecords();
diff --git a/src/main/decoder/decode-pfm.ts b/src/main/decoder/decode-pfm.ts
index 5b99398..cc840db 100644
--- a/src/main/decoder/decode-pfm.ts
+++ b/src/main/decoder/decode-pfm.ts
@@ -9,23 +9,46 @@ import {
   DecodedPfmLine,
   JobMaterialRateFields,
 } from "./decode-pfm.interface";
+import { platform } from "@electron-toolkit/utils";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodePfm = async (
   extensionlessFilePath: string,
 ): Promise<DecodedPfm> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.PFM`);
-  } catch (error) {
-    //PFM File only has 1 location.
-    log.error("Error opening PFM File.", errorTypeCheck(error));
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.PFM`);
+    } catch (error) {
+      //PFM File only has 1 location.
+      log.error("Error opening PFM File.", errorTypeCheck(error));
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any PFM files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any PFM files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any PFM files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any PFM files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = [".pfm"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any PFM files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any PFM files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening PFM File.", errorTypeCheck(error));
+      throw error;
+    }
   }
-
   const rawDBFRecord = await dbf.readRecords();
 
   //AD2 will always have only 1 row.
diff --git a/src/main/decoder/decode-pfo.ts b/src/main/decoder/decode-pfo.ts
index 6a6e536..c63241d 100644
--- a/src/main/decoder/decode-pfo.ts
+++ b/src/main/decoder/decode-pfo.ts
@@ -5,22 +5,46 @@ import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
 import errorTypeCheck from "../../util/errorTypeCheck";
 import YNBoolConverter from "../../util/ynBoolConverter";
 import { DecodedPfo, DecodedPfoLine } from "./decode-pfo.interface";
+import { platform } from "@electron-toolkit/utils";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodePfo = async (
   extensionlessFilePath: string,
 ): Promise<DecodedPfo> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.PFO`);
-  } catch (error) {
-    log.error("Error opening PFO File.", errorTypeCheck(error));
-    dbf = await DBFFile.open(`${extensionlessFilePath}.PFO`);
-    log.log("Trying to find PFO file using regular CIECA Id.");
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.PFO`);
+    } catch (error) {
+      log.error("Error opening PFO File.", errorTypeCheck(error));
+      dbf = await DBFFile.open(`${extensionlessFilePath}.PFO`);
+      log.log("Trying to find PFO file using regular CIECA Id.");
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any PFO files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any PFO files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any PFO files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any PFO files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = [".pfo"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any PFO files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any PFO files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening PFO File.", errorTypeCheck(error));
+      throw error;
+    }
   }
 
   const rawDBFRecord = await dbf.readRecords(1);
diff --git a/src/main/decoder/decode-pfp.ts b/src/main/decoder/decode-pfp.ts
index b19e822..c6d1f2a 100644
--- a/src/main/decoder/decode-pfp.ts
+++ b/src/main/decoder/decode-pfp.ts
@@ -9,23 +9,46 @@ import {
   DecodedPfpLine,
   DecodedPfpLinesByType,
 } from "./decode-pfp.interface";
+import { platform } from "@electron-toolkit/utils";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodePfp = async (
   extensionlessFilePath: string,
 ): Promise<DecodedPfp> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.PFP`);
-  } catch (error) {
-    //PFP File only has 1 location.
-    log.error("Error opening PFP File.", errorTypeCheck(error));
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.PFP`);
+    } catch (error) {
+      //PFP File only has 1 location.
+      log.error("Error opening PFP File.", errorTypeCheck(error));
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any PFP files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any PFP files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any PFP files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any PFP files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = [".pfp"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any PFP files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any PFP files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening PFP File.", errorTypeCheck(error));
+      throw error;
+    }
   }
-
   const rawDBFRecord = await dbf.readRecords();
 
   //AD2 will always have only 1 row.
diff --git a/src/main/decoder/decode-pft.ts b/src/main/decoder/decode-pft.ts
index 5c9e2c3..3430660 100644
--- a/src/main/decoder/decode-pft.ts
+++ b/src/main/decoder/decode-pft.ts
@@ -1,23 +1,47 @@
+import { platform } from "@electron-toolkit/utils";
 import { DBFFile } from "dbffile";
 import log from "electron-log/main";
 import _ from "lodash";
 import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
 import errorTypeCheck from "../../util/errorTypeCheck";
 import { DecodedPft, DecodedPftLine } from "./decode-pft.interface";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodePft = async (
   extensionlessFilePath: string,
 ): Promise<DecodedPft> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.PFT`);
-  } catch (error) {
-    log.error("Error opening PFH File.", errorTypeCheck(error));
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.PFT`);
+    } catch (error) {
+      log.error("Error opening PFH File.", errorTypeCheck(error));
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any PFT files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any PFT files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any PFT files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any PFT files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = ["pft"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any PFT files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any PFT files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening PFT File.", errorTypeCheck(error));
+      throw error;
+    }
   }
 
   const rawDBFRecord = await dbf.readRecords(1);
diff --git a/src/main/decoder/decode-stl.ts b/src/main/decoder/decode-stl.ts
index 2c322a0..0706099 100644
--- a/src/main/decoder/decode-stl.ts
+++ b/src/main/decoder/decode-stl.ts
@@ -4,22 +4,45 @@ import _ from "lodash";
 import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
 import errorTypeCheck from "../../util/errorTypeCheck";
 import { DecodedStl, DecodedStlLine } from "./decode-stl.interface";
+import { platform } from "@electron-toolkit/utils";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodeStl = async (
   extensionlessFilePath: string,
 ): Promise<DecodedStl> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.STL`);
-  } catch (error) {
-    log.error("Error opening STL File.", errorTypeCheck(error));
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.STL`);
+    } catch (error) {
+      log.error("Error opening STL File.", errorTypeCheck(error));
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any STL files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any STL files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any STL files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any STL files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = ["stl"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any STL files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any STL files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening STL File.", errorTypeCheck(error));
+      throw error;
+    }
   }
-
   const rawDBFRecord = await dbf.readRecords();
 
   //AD2 will always have only 1 row.
diff --git a/src/main/decoder/decode-ttl.ts b/src/main/decoder/decode-ttl.ts
index 4a9521f..0fc1f36 100644
--- a/src/main/decoder/decode-ttl.ts
+++ b/src/main/decoder/decode-ttl.ts
@@ -4,20 +4,44 @@ import _ from "lodash";
 import deepLowerCaseKeys from "../../util/deepLowercaseKeys";
 import errorTypeCheck from "../../util/errorTypeCheck";
 import { DecodedTtl, DecodedTtlLine } from "./decode-ttl.interface";
+import { platform } from "@electron-toolkit/utils";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodeTtl = async (
   extensionlessFilePath: string,
 ): Promise<DecodedTtl> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}.TTL`);
-  } catch (error) {
-    log.error("Error opening TTL File.", errorTypeCheck(error));
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}.TTL`);
+    } catch (error) {
+      log.error("Error opening TTL File.", errorTypeCheck(error));
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any TTL files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any TTL files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any TTL files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any TTL files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = ["ttl"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any TTL files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any TTL files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening TTL File.", errorTypeCheck(error));
+      throw error;
+    }
   }
 
   const rawDBFRecord = await dbf.readRecords(1);
diff --git a/src/main/decoder/decode-veh.ts b/src/main/decoder/decode-veh.ts
index c503c8e..467207d 100644
--- a/src/main/decoder/decode-veh.ts
+++ b/src/main/decoder/decode-veh.ts
@@ -6,24 +6,47 @@ import { DecodedVeh, VehicleRecordInterface } from "./decode-veh.interface";
 import errorTypeCheck from "../../util/errorTypeCheck";
 import store from "../store/store";
 import typeCaster from "../../util/typeCaster";
+import { platform } from "@electron-toolkit/utils";
+import { findFileCaseInsensitive } from "./decoder-utils";
 
 const DecodeVeh = async (
   extensionlessFilePath: string,
 ): Promise<DecodedVeh> => {
   let dbf: DBFFile | null = null;
-  try {
-    dbf = await DBFFile.open(`${extensionlessFilePath}V.VEH`);
-  } catch (error) {
-    log.error("Error opening VEH File.", errorTypeCheck(error));
-    dbf = await DBFFile.open(`${extensionlessFilePath}.VEH`);
-    log.log("Found VEH file using regular CIECA Id.");
-  }
+  if (platform.isWindows) {
+    try {
+      dbf = await DBFFile.open(`${extensionlessFilePath}V.VEH`);
+    } catch (error) {
+      log.error("Error opening VEH File.", errorTypeCheck(error));
+      dbf = await DBFFile.open(`${extensionlessFilePath}.VEH`);
+      log.log("Found VEH file using regular CIECA Id.");
+    }
 
-  if (!dbf) {
-    log.error(`Could not find any VEH files at ${extensionlessFilePath}`);
-    throw new Error(`Could not find any VEH files at ${extensionlessFilePath}`);
+    if (!dbf) {
+      log.error(`Could not find any VEH files at ${extensionlessFilePath}`);
+      throw new Error(
+        `Could not find any VEH files at ${extensionlessFilePath}`,
+      );
+    }
+  } else {
+    const possibleExtensions: string[] = ["v.veh", ".veh"];
+    const filePath = await findFileCaseInsensitive(
+      extensionlessFilePath,
+      possibleExtensions,
+    );
+    try {
+      if (!filePath) {
+        log.error(`Could not find any VEH files at ${extensionlessFilePath}`);
+        throw new Error(
+          `Could not find any VEH files at ${extensionlessFilePath}`,
+        );
+      }
+      dbf = await DBFFile.open(filePath);
+    } catch (error) {
+      log.error("Error opening VEH File.", errorTypeCheck(error));
+      throw error;
+    }
   }
-
   const rawDBFRecord = await dbf.readRecords(1);
 
   //AD2 will always have only 1 row.
diff --git a/src/main/decoder/decoder-utils.ts b/src/main/decoder/decoder-utils.ts
new file mode 100644
index 0000000..1d0c5fe
--- /dev/null
+++ b/src/main/decoder/decoder-utils.ts
@@ -0,0 +1,36 @@
+import log from "electron-log/main";
+import fs from "fs";
+import path from "path";
+
+const findFileCaseInsensitive = async (
+  extensionlessFilePath: string,
+  extensions: string[],
+): Promise<string | null> => {
+  const directory: string = path.dirname(extensionlessFilePath);
+  try {
+    const matchingFiles = fs
+      .readdirSync(directory)
+      .filter((file: string) =>
+        extensions.some((ext) =>
+          file.toLowerCase().endsWith(ext.toLowerCase()),
+        ),
+      );
+    const files: string[] = [];
+    matchingFiles.forEach((file) => {
+      const fullPath = path.join(directory, file);
+      files.push(fullPath);
+    });
+
+    // Return the first matching file if needed
+    if (files.length > 0) {
+      return files[0];
+    }
+  } catch (error) {
+    log.error(`Failed to read directory ${directory}:`, error);
+    throw error;
+  }
+
+  return null;
+};
+
+export { findFileCaseInsensitive };